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Sunny Start Friday - Chance of showers
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Last Complete Site Update: 10/01 - 4:12 PM
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The trees are in their autumn beauty, The woodland paths are dry,
Under the October twilight the water Mirrors a still sky.
- William Butler Yeats
Today’s Weather at a Glance
Updated Every Morning and as Needed Through the Day
(Averages Across Southern NH)
72Degrees
High Temperature
0%
Probability of Precipitation - Daytime
65Degrees
Low Temperature
0%
Probability of Precipitation - Nighttime
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Today in Peterborough, NH at a Glance
Today in Nashua, NH at a Glance
Your Daily Forecast - Three Days at a Time
No Advisories are active.
Quiet Weather
Monday/Monday Night - October 5
Nashua - East
Peterborough - Central/West
Tuesday/Tuesday Night - October 6
Nashua - East
Peterborough - Central/West
Wednesday/Wednesday Night - October 7
Nashua - East
Peterborough - Central/West
Thursday/Thursday Night - October 1
Nashua - East
Mostly cloudy, then gradually becoming mostly clear, with a low around 66. Southwest wind around 5 mph.
Peterborough - Central/West
Mostly cloudy, with a low around 63. Southwest wind 5 to 10 mph.
Friday/Friday Night - October 2
Nashua - East
A slight chance of showers before 3pm, then a chance of showers after 4pm. Increasing clouds, with a high near 81. Southwest wind 5 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
A 30 percent chance of showers, mainly before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 52. Northwest wind around 5 mph. New precipitation amounts of less than a tenth of an inch possible.
Peterborough - Central/West
A 30 percent chance of showers, mainly after 3pm. Increasing clouds, with a high near 76. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.
Mostly cloudy, then gradual clearing toward daybreak, with a low around 48. Northwest wind around 5 mph becoming calm in the evening.
Saturday/Saturday Night - October 3
Nashua - East
Sunny, with a high near 69. North wind around 5 mph.
Mostly clear, with a low around 42. Calm wind.
Peterborough - Central/West
Sunny, with a high near 64. Calm wind becoming north around 5 mph.
Clear, with a low around 39. Calm wind.
Sunday/Sunday Night - October 4
Nashua - East
Mostly sunny, with a high near 64.
A 30 percent chance of showers after 11pm. Mostly cloudy, with a low around 46.
Peterborough - Central/West
Mostly sunny, with a high near 62.
Mostly cloudy, with a low around 43.
Current Weather Readings in Peterborough, NH
Time of the readings below: 1 Oct 2026 5:19 PM
(FYI: The number in parentheses is the change in the last hour)
(Note: My weather Instruments are Offline from Midnight Wednesday to 7AM Thursday for system Back ups.)
Current Temperature:
68.3°F (-1.2)
High Temperature:
70.3 at 3:02 PM
Low Temperature:
57.4 at 7:03 AM
Precipitation Today:
0.00 inches
Current Dewpoint:
63.3°F (-0.1)
Highest Heat Index Reading:
70.3 at 3:02 PM
Current Windspeed:
1 MPH (-0)
Barometric Trend:
Steady
Hours of Daylight Today:
11:42
Link to my Active Weather Instruments
Information for New England
Seven Day Temperature Outlook - Manchester NH & Southern New England
Current Northeast Radar
Expected Temperature Range
Health/Sports - The Five Day Allergy & NFL Football Weather by Game
Rich's Weather Discussion
New Hampshire/North Briefing
Massachusetts/South Briefing
At this moment: 10/01 - 4:12 PM
Notes from Rich:
What is the 'Regular’ Schedule.
Weekdays: Morning updates each day before 8AM, Evening Updates before 7PM.
On Weekends: Perhaps a bit later. I like to sleep in.
Every Thursday morning I post the daily forecast through the weekend.
Upcoming Site Update Schedule Changes:
Back on the regular schedule
Good - Bye September! Hello October! It will feel like summer, then fall returns by the weekend.
Cloudy tonight. Enjoy the unusual warmth through Friday, because temperatures will drop significantly over the weekend and become quite cold early next week. By Tuesday and Wednesday mornings, temperatures could fall into the upper 20s and 30s in many areas, with the potential for a hard freeze away from the immediate coast. Some showers may even change to light snow in the mountains Monday night.
Very warm weather continues through Friday before a cold front brings cooler, more seasonable conditions for the weekend. A much colder polar air mass arrives early next week, bringing the coldest overnight temperatures of the season so far. Many areas south of the mountains could experience their first hard freeze.
Hurricane Polo made landfall on Mexico's Baja peninsula early Tuesday as a Category 2 with 110 mph winds, and what's left of it arrives in the U.S..
Flash flood watches stretch from Phoenix to Des Moines, putting more than 30 million people at risk. Roads in southern New Mexico were already underwater Tuesday.
Texas gets the worst of it next. Dallas-Fort Worth is looking at 1 to 4 inches starting today and running through Thursday.
Polo peaked at 180 mph over the weekend, tied for the third-strongest storm ever recorded in the eastern Pacific. It went from 45 mph to 150 mph in a single day, a jump forecasters called "truly remarkable."
Tropical Storm Fay has dissipated.
Tropical Storm Hanna has dissipated.
Site changes coming up:
I will be dropping the daily Beach report and the Allergy Reports beginning in October.
The Flu report will replace the pollen data.
I have added NFL Football Weather for each game- Updated weekly/daily as needed - Find the list here
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The History Section has a lot of history to share, and I will be sharing video on this page from time to time. Updated every day with new weather history.
Find beach and hiking, and Ski information as well as travel info for the USA in the Travel and Leisure Section.
Find all Tropical Tracking/Hurricane information on the Tropics Page.
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On this day in history:
On this day in 1961, in their final game of the regular season, Yankees slugger Roger Maris hit his 61st home run, becoming the first player in Major League Baseball to hit over 60 in a season, surpassing Babe Ruth's record of 60 set in 1927
Weather Summaries and Full Area Forecast Discussions - North (Edited)
Summary - Northern New England - New Hampshire and Maine
Summary:
Very warm weather continues through Friday before a cold front brings cooler, more seasonable conditions for the weekend. A much colder polar air mass arrives early next week, bringing the coldest overnight temperatures of the season so far. Many areas south of the mountains could experience their first hard freeze.
Key Messages:
- Very warm temperatures continue through Friday before a cold front returns the region to more seasonable weather.
- A polar air mass brings the coldest overnight temperatures so far this season early next week. Many locations south of the mountains may see their first hard freeze.
What has changed since the last Forecast Update?
No significant changes with this forecast update.
What this means for you:
Enjoy the unusual warmth through Friday, because temperatures will drop significantly over the weekend and become quite cold early next week. By Tuesday and Wednesday mornings, temperatures could fall into the upper 20s and 30s in many areas, with the potential for a hard freeze away from the immediate coast. Some showers may even change to light snow in the mountains Monday night.
Click the Open/Close Button to Display the Full Edited Area Forecast Discussion
**Area Forecast Discussion, National Weather Service Gray ME**
**255 PM EDT Thu Oct 1 2026**
**What has changed**
No significant changes with this forecast update.
**Key Messages**
1. Very warm temperatures continue through Friday before a cold front returns the region to more seasonable weather.
2. A polar air mass brings the coldest overnight temperatures so far this season early next week. Many locations south of the mountains may see their first hard freeze.
**Discussion**
**Key Message 1**
Increasing clouds and warmer air moving into the region overnight will keep temperatures unusually mild for this time of year. Friday morning temperatures may actually be closer to typical afternoon highs for early October.
That will lead to another much warmer than normal day for most of the area Friday. The main exception will be across the mountains, where clouds and showers will arrive early enough to limit daytime warming. Temperatures there should remain mainly in the 60s.
Elsewhere, the mild start to the day will allow temperatures to rise well into the 70s, with some locations possibly reaching the 80s.
Rain showers will be fairly limited as the front moves through Friday, with most areas expected to receive less than one tenth of an inch of precipitation. Any rain will also increase the potential for valley and radiation fog Friday night as skies clear.
**Key Message 2**
A polar air mass brings the coldest overnight temperatures so far this season early next week. Many locations south of the mountains may see their first hard freeze.
Strong high pressure will move through the area this weekend, bringing dry and cooler weather. The front will cross the region Saturday. Areas north of the mountains should reach only the upper 50s and lower 60s, while areas from the foothills south should have enough time to warm into the mid to upper 60s.
The front should be through the region by Saturday night, allowing most areas to wake up to temperatures in the 30s Sunday morning.
Clouds will then increase across the region early Sunday ahead of an approaching upper-level trough. After a chilly morning, temperatures are not expected to recover much and should reach only the lower to middle 60s across the area.
Clouds will remain fairly abundant Sunday night, limiting cooling. Temperatures should fall into the upper 30s and 40s.
A vertically stacked area of low pressure will move through Quebec Monday, dragging another front through our region. Forecast guidance is not currently showing much precipitation with this system. The chance of receiving more than one tenth of an inch of precipitation is only about 10 to 30 percent outside the mountains.
The bigger weather story will be the cold, dry air that moves in behind the front. Any showers lingering in the mountains Monday night could even change to light snow.
High temperatures Tuesday are expected to reach only the upper 40s to middle 50s from north to south. Increasing winds may make it feel even colder.
Forecast guidance suggests dewpoints will fall into the upper 20s and lower 30s behind the front. Dewpoints are a measure of the amount of moisture in the air, and lower values generally indicate drier air. Temperatures about 5,000 feet above the surface are also expected to fall to roughly 23 to 32 degrees, supporting the potential for very cold conditions near the ground Tuesday and Wednesday mornings.
Current forecast guidance shows temperatures in the upper 20s and lower 30s across the mountains and foothills, with middle to upper 30s across the coastal plain. Temperatures along the coastal plain could eventually be lowered further as higher-resolution forecasts become available, especially because conditions appear favorable for radiation cooling, which occurs when the ground loses heat rapidly under clear and calm conditions.
These areas remain eligible for Frost and Freeze products, so the potential for the first significant freeze of the season will need to be watched closely.
Temperatures should become more seasonable again Wednesday and Thursday nights as high pressure moves east and southwesterly winds develop through the atmosphere.
Weather Summaries and Full Area Forecast Discussions - South (Edited)
Summary - Southern New England - Massachusetts/Northern CT/Rhode Island
Summary:
A late taste of summer arrives Friday with temperatures rising to around 80 degrees before showers and a few thunderstorms move through Friday evening. Cooler and drier weather follows Saturday, with a chilly Saturday night. There is still some uncertainty about showers Sunday into Sunday night, mainly south of the Massachusetts Turnpike. The biggest change comes early next week, when the coolest air of the season arrives, bringing a good chance for frost Tuesday night into early Wednesday. Most of the upcoming work week looks dry.
Key Messages:
- Late taste of summer Friday with highs around 80 degrees, followed by showers and a few thunderstorms Friday night.
- Cooler and drier Saturday, followed by a chilly Saturday night.
- Watching to see if a wave of low pressure tracks far enough north to bring a period of showers sometime Sunday into Sunday night.
- The coolest air of the season arrives Monday night through Wednesday. Areas of frost are expected Tuesday night into early Wednesday morning. Dry weather is expected for most, if not all, of the next work week.
What has changed since the last Forecast Update?
A Small Craft Advisory has been issued for gusty winds ahead of the cold front and elevated seas across the southern coastal waters Friday into Friday evening. A low chance for an isolated thunderstorm Friday afternoon and evening has also been added as the cold front moves through southern New England. Otherwise, there were no significant changes to the forecast.
What this means for you
Friday will feel more like summer than early October, with warm temperatures, increasing humidity, and gusty southwest winds. Showers and a few thunderstorms are possible Friday afternoon and evening, with some brief heavy downpours and locally stronger wind gusts. Saturday turns noticeably cooler and drier, followed by a chilly Saturday night. Sunday could bring some showers, mainly across southern areas, although the exact northern extent remains uncertain. The coolest air of the season arrives Monday night through Wednesday, with temperatures falling into the 30s in many locations and frost likely Tuesday night into early Wednesday. Most of next week should be dry.
Click the Open/Close Button to Display the Full Edited Area Forecast Discussion
**Area Forecast Discussion, National Weather Service Boston/Norton MA, 255 PM EDT Thursday, October 1, 2026**
**What Has Changed**
A Small Craft Advisory has been issued for gusty winds ahead of the cold front and elevated seas across the southern coastal waters Friday into Friday evening. A low chance for an isolated thunderstorm Friday afternoon and evening has also been added as the cold front moves through southern New England. Otherwise, there were no significant changes to the forecast.
**Key Messages**
1. Late taste of summer Friday with highs around 80 degrees, followed by showers and a few thunderstorms Friday night.
2. Cooler and drier Saturday, followed by a chilly Saturday night.
3. Watching to see if a wave of low pressure tracks far enough north to bring a period of showers sometime Sunday into Sunday night.
4. The coolest air of the season arrives Monday night through Wednesday. Areas of frost are expected Tuesday night into early Wednesday morning. Dry weather is expected for most, if not all, of the next work week.
**Discussion**
**Key Message 1, Late taste of summer Friday with highs around 80 degrees, followed by showers and a few thunderstorms Friday night**
The overall middle and upper level winds remain generally west to east through Friday, while high pressure stays anchored off the coast of the Carolinas. This keeps the low-level winds coming from the southwest.
Tonight will remain somewhat cloudy and mild, with temperatures only falling into the 60s. Some clearing develops Friday, allowing temperatures to warm quickly. Temperatures about 5,000 feet above the ground rise to levels that support highs in the lower 80s across much of the region.
Humidity will also increase, with dew points climbing into the 60s. This will provide a late taste of summer for the second day of October. For perspective, temperatures around 80 degrees this time of year are close to the typical date of the last 80 degree day of the year in Boston, which is September 30.
Winds will become stronger Friday as southwest winds mix down from about 5,000 feet, where winds are around 23 to 35 mph. Gusts of 20 to 25 mph are therefore possible during the afternoon.
High pressure moves east as a cold front approaches from the west late Friday into Friday evening. The 8 AM EDT high-resolution guidance indicates that the cold front and its associated showers and thunderstorms should move through from northwest to southeast between roughly 3 or 4 PM and 10 or 11 PM.
A large amount of moisture will accompany the front, with precipitable water values approaching or exceeding 2 inches. This is well above what is typical for early October. The front will have only modest atmospheric support, and instability will be relatively limited, with only a few hundred units of available convective energy. Even so, an isolated thunderstorm or two cannot be ruled out.
The lower atmosphere will become somewhat unstable, while instability higher in the atmosphere will be weaker. Some stronger wind gusts are possible, although wind gusts below severe levels currently appear more likely than severe gusts. Brief periods of locally heavy rain are also possible because of the unusually high moisture levels.
**Key Message 2, Cooler and drier Saturday, followed by a chilly Saturday night**
Behind the front, high pressure builds across the eastern Great Lakes Saturday while the cold front remains just offshore. This could lead to a period of clouds and a few showers offshore early Saturday.
Otherwise, Saturday will be cooler and drier, with temperatures about 5,000 feet above the ground falling to levels supporting highs generally in the upper 60s to around 70 degrees.
High pressure moves into southern New England Saturday night into early Sunday, setting the stage for strong nighttime cooling. Low temperatures will fall into the 40s across much of the region, with warmer readings in urban centers such as Boston around 50 degrees. The coldest locations, especially across the higher terrain of western Massachusetts, could fall into the upper 30s.
**Key Message 3, Watching if a wave of low pressure tracks far enough north to bring a period of showers sometime Sunday into Sunday night**
There remains considerable disagreement about how far north the area of precipitation associated with a wave of low pressure will reach Sunday into Sunday night.
Most of the 8 AM EDT forecast guidance keeps the northern edge of the rain south of our region, perhaps briefly reaching the south coast. However, the European Centre for Medium-Range Weather Forecasts model, along with some individual members of the Global Ensemble Forecast System and Canadian ensemble guidance, tracks the precipitation farther north and indicates the potential for a period of showers.
The greatest chance for showers appears to be south of the Massachusetts Turnpike, but it is too early to rule out some showers reaching the New Hampshire border. Conversely, the rain could remain completely south of southern New England.
Either way, significant impacts are not expected even if rain affects part of the region Sunday into Sunday night. Because of the uncertainty, precipitation chances remain mainly in the chance category, with the highest chances near the south coast.
High temperatures should be in the 60s, although it could end up somewhat cooler depending on how far north the rain shield reaches.
**Key Message 4, Coolest air of the season arrives Monday night through Wednesday, with frost expected Tuesday night into early Wednesday morning**
A pleasant and seasonable day is expected Monday, with highs well into the 60s and perhaps approaching 70 degrees in a few locations. It will be somewhat breezy as a cold front crosses the region.
Low-level moisture will be limited, so the frontal passage should be mainly dry, although a few brief showers cannot be ruled out. The main impact will be the arrival of the coolest air of the fall season across southern New England from Monday night through Wednesday.
High temperatures may struggle to reach 60 degrees Tuesday, along with a breezy northwest wind. High pressure building overhead will allow for the coolest night of the young fall season Tuesday night.
By daybreak Wednesday, low temperatures should fall into the 30s across many locations, with some of the normally coldest outlying areas potentially approaching the freezing mark. Frost is likely in many locations as well.
The large area of high pressure shifts east of the region by Thursday. This should allow a southwest flow of milder, seasonable air to return by Thursday afternoon.
Dry weather should dominate most, if not all, of the upcoming work week. There is little moisture or atmospheric support available to produce precipitation.
Countdown to Winter
Winter Begins on: December 21, 2026 at 4:50 PM EST
90Days14Hours6Mins14Secs
Five Day Daily Temperature Run - Peterborough, NH
Updated Every Morning
Normal Daily Averages
High Temperature: 63 Degrees - Low Temperature: 41 Degrees
(Tip: Place your cursor over the bar below to see the number)
Weather News/Headlines of Interest -
Updated Daily
Evacuations underway as Southwest flooding threatens dam failure
Triple flood threat in the central, southern US fueled by Pacific hurricanes
October outlook: Summer tries to hold on with El Ni?±o impacts expected to make a spooky appearance
Heavy rain to soak Southeast, mid-Atlantic as Northeast dries out this weekend
A 121-year-old Atlantic hurricane record could be broken in October
Nor'easter churns sea foam across New England coast. Is it safe?
Map: When is the final time you need to mow your lawn in 2026?
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