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AM Fog - Sunny Monday
Last Complete Site Update: 10/04 - 4:45 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)
63Degrees
High Temperature
0%
Probability of Precipitation - Daytime
46Degrees
Low Temperature
20%
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
Patchy fog before 9am. Otherwise, sunny, with a high near 66. Light and variable wind becoming northwest 10 to 15 mph in the morning. Winds could gust as high as 30 mph.
Clear, with a low around 40. West wind 5 to 10 mph, with gusts as high as 20 mph.
Peterborough - Central/West
Patchy fog before 9am. Otherwise, sunny, with a high near 61. Southwest wind 5 to 15 mph becoming west in the afternoon. Winds could gust as high as 30 mph.
Clear, with a low around 36. West wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday/Tuesday Night - October 6
Nashua - East
Sunny, with a high near 60. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Patchy frost after 5am. Otherwise, clear, with a low around 36. West wind around 5 mph becoming calm.
Peterborough - Central/West
Sunny, with a high near 56. West wind 10 to 15 mph, with gusts as high as 25 mph.
Patchy frost after 1am. Otherwise, clear, with a low around 34. Calm wind.
Wednesday/Wednesday Night - October 7
Nashua - East
Patchy frost before 7am. Otherwise, sunny, with a high near 67.
Mostly clear, with a low around 48.
Peterborough - Central/West
Patchy frost before 8am. Otherwise, sunny, with a high near 63.
Mostly clear, with a low around 45.
Thursday/Thursday Night - October 8
Nashua - East
Peterborough - Central/West
Friday/Friday Night - October 9
Nashua - East
Peterborough - Central/West
Saturday/Saturday Night - October 10
Nashua - East
Peterborough - Central/West
Sunday/Sunday Night - October 4
Nashua - East
Isolated showers between 8pm and 9pm. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 45. East wind around 5 mph becoming calm. Chance of precipitation is 20%.
Peterborough - Central/West
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 43. Southeast wind around 5 mph becoming calm.
Current Weather Readings in Peterborough, NH
Time of the readings below: 4 Oct 2026 5:18 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:
58.7°F (-1.6)
High Temperature:
61.7 at 2:34 PM
Low Temperature:
36.7 at 7:24 AM
Precipitation Today:
0.00 inches
Current Dewpoint:
50.1°F (-0.4)
Lowest Wind Chill Reading:
36.7 at 7:24 AM
Current Windspeed:
0 MPH (0)
Barometric Trend:
Falling Slowly
Hours of Daylight Today:
11:33
Link to my Active Weather Instruments
Information for New England
Seven Day Temperature Outlook - Manchester NH & Southern New England
Daily Almanac Peterborough, NH
Daily Almanac Nashua, NH
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: 10/04 - 4:46 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:
I need a forecasting break! Even I get tired of the weather! Starting on October. 11 I will update the daily forecast for the next seven days. There will be no site updates through October 16. Site updates will begin again on October. 17 with minimal breaks through the winter months. During this break period my weather instruments will be offline for annual maintenance. Thank you!
Increasing clouds have arrived as a Polar Cold front heads for the region. Expect a few showers as this front passes by tonight, but most of that activity will be to our north, and then south in MA. Once that polar front crosses, we will turn MUCH colder. Frost and freeze advisories are likely, even here in southern NH. Wind chill becomes a a factor by Monday night. Otherwise, dry weather continues well into next week. Milder temps return towards the end of the week.
A strong cold front will cross New England on Monday, bringing gusty northwest winds and a few showers. Much colder air will follow, with breezy conditions continuing into Tuesday and the coldest night of the season so far possible Tuesday night. Many locations south of the mountains could see their first frost or freeze of the season, while higher elevations may briefly see wind chills below freezing. Another chance for showers develops later in the week, but significant rainfall is not expected at that time.
From the Weather Channel:
We stayed busy last weekend tracking Hurricane Nolo as it passed Hawaii, bringing tons of rain, high wind gusts and massive waves to the islands. Fortunately, the Aloha State escaped without widespread destruction as Nolo headed west and weakened. But that's not the end of Nolo's story. It's still churning out in the middle of the ocean, continuing west where its designation will change from "hurricane" to "typhoon." What's the difference? Nothing about the storm is actually changing - except its location. Typhoons and hurricanes are the exact same tropical cyclones.
Long ago, different parts of the world assigned different words to describe the same type of storm. So, we use "hurricane" in the Atlantic Ocean and the East and Central Pacific, and "typhoon" for tropical cyclones on the other side of the International Date Line, in the West Pacific Basin. Crossing that line from east to west - or vice versa - automatically changes a storm's official title on the map while leaving its assigned name intact. And that's what Nolo's up to this weekend.
10/02 - I have updated the Drought Information.
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. Find them Here
I have added NFL Football Weather for each game- Updated weekly/daily as needed - Find the list here
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What information can you find on my site, and where is it?
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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Note: When you move your cursor over an image, the image fades. Click on the image and that opens a lightbox view that expands the image and allows you to click through all of the images in a section.
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On this day in history:
On this day in 1918, German Chancellor Max von Baden, appointed by Kaiser Wilhelm II three days earlier, sent a telegraph to President Woodrow Wilson in Washington, D.C., requesting an armistice with the Allied powers in World War I.
Weather Summaries and Full Area Forecast Discussions - North (Edited)
Summary - Northern New England - New Hampshire and Maine
Summary:
A strong cold front will cross New England on Monday, bringing gusty northwest winds and a few showers. Much colder air will follow, with breezy conditions continuing into Tuesday and the coldest night of the season so far possible Tuesday night. Many locations south of the mountains could see their first frost or freeze of the season, while higher elevations may briefly see wind chills below freezing. Another chance for showers develops later in the week, but significant rainfall is not expected at that time.
Key Messages:
- A strong cold front crosses the area on Monday, bringing gusty winds and a few showers. Colder and breezy conditions continue into Tuesday, with the coldest night of the season so far possible Tuesday night. Many locations south of the mountains could see frost and possibly their first freeze of the season.
What has changed since the last Forecast Update?
No significant changes with this forecast update.
What this means for you:
Monday will bring a noticeable change to colder weather, with wind gusts around 25 to 35 mph and higher gusts possible in the mountains. Tuesday will remain chilly and breezy, followed by a very cold Tuesday night. Temperatures could fall to around freezing along the coastal plain and into the upper 20s and lower 30s in the foothills. If you are hiking above treeline Monday, be prepared for wind chills that could feel below freezing.
Click the Open/Close Button to Display the Full Edited Area Forecast Discussion
**Area Forecast Discussion, National Weather Service Gray ME, 221 PM EDT
Sun Oct 4 2026**
**What Has Changed**
No significant changes with this forecast package.
**Key Messages**
1. A strong cold front crosses the area on Monday, bringing gusty winds and a few showers. Colder and breezy conditions continue into Tuesday, with the coldest night of the season so far possible Tuesday night. Many locations south of the mountains could see frost and possibly their first freeze of the season.
**Discussion**
**Monday Cold Front**
A few showers are possible along the immediate coast this evening and tonight as a weak area of low pressure moves through the Gulf of Maine. Otherwise, the next best chance for showers across the rest of the area comes during the day Monday as a strong cold front moves through.
Forecast guidance from the High Resolution Ensemble Forecast system, or HREF, and the National Blend of Models, or NBM, continues to suggest that the front will pass with mostly dry conditions south of the mountains. Areas south of the mountains could receive only a few hundredths of an inch of precipitation, while northern areas are more likely to receive around a tenth of an inch.
Colder air moving in behind the front will change any lingering northern showers to light snow Monday night. This should be limited mainly to higher elevations where winds flowing up the mountain slopes, known as upslope flow, will support the snow.
Northwest wind gusts around 25 to 35 mph are expected as the front passes, with higher gusts possible at higher elevations. Hikers should be prepared for wind chills that could fall below freezing above treeline.
Breezy winds will continue Monday night, preventing strong radiational cooling, which occurs when the ground loses heat quickly under clear and calm conditions. Even so, temperatures should fall into the lower 30s across the north and the middle to upper 30s farther south. With the wind chill, it could feel more like the 20s across much of the area.
**Tuesday and the First Frost or Freeze**
Temperatures about 5,000 feet above the surface are expected to be around 25 to 30 degrees Tuesday. This colder air will mix down to the surface, allowing afternoon temperatures to reach only the upper 40s and lower 50s across northern areas and the middle to upper 50s farther south. Winds will remain breezy but should gradually diminish during the day.
The coldest night of the season so far is likely to follow Tuesday as winds calm and radiational cooling becomes more effective. Cooler computer forecast guidance has been incorporated into the forecast, bringing temperatures close to freezing along the coastal plain.
The coastal plain has not yet experienced its first frost, and Tuesday night into Wednesday morning appears to be the best opportunity so far. Many areas in the foothills have also not yet experienced a hard freeze, and this is likely to be the event that brings one. However, the growing season has already officially ended in these areas.
**Later This Week**
Forecast ensembles, which use multiple computer model scenarios to assess the range of possible weather outcomes, are suggesting another chance for showers across the area with the next frontal passage. This system does not appear to be as strong, and significant rainfall is not expected for most locations.
Precipitation will be most likely in the mountains, with decreasing chances farther south and downwind of the higher terrain. An overall west to east flow pattern will keep significant warmth away, with seasonable temperatures expected.
Looking beyond the current forecast period, there is already a fairly strong signal among the forecast ensembles for a more widespread precipitation threat during the first half of next week. A deep trough, or elongated area of low pressure in the upper atmosphere, could draw tropical moisture northward from the Gulf of Mexico near the Yucatan Peninsula. This system is still a long way out, but it could provide the best opportunity for widespread beneficial rainfall.
Weather Summaries and Full Area Forecast Discussions - South (Edited)
Summary - Southern New England - Massachusetts/Northern CT/Rhode Island
Summary:
Scattered showers will affect southern New England this afternoon and into early Monday morning, with the highest rainfall chances across Cape Cod and the islands. A sharp change in temperatures follows as colder Canadian air moves into the region Monday and Tuesday. Tuesday night could bring the coldest temperatures of the season so far in some areas. Dry, fall-like weather then returns for the second half of the week, with temperatures mainly in the 60s and a chance of some lower 70s by Thursday.
Key Messages:
- Scattered showers this afternoon into early morning Monday.
- A sharp temperature drop is then expected for the start of the week, followed by a return to dry, fall-like conditions.
What has changed since the last Forecast Update?
No significant changes to the forecast.
What this means for you
Expect scattered showers through early Monday, with rainfall generally light. The Cape and islands could receive less than one half inch, while areas north and west of the Cape Cod Canal should generally see less than one quarter inch. Much colder weather arrives Monday night and Tuesday, with lows dropping into the upper 30s and lower 40s. Tuesday night could be even colder under clearer skies and lighter winds. Dry weather and more seasonable temperatures return later in the week.
Click the Open/Close Button to Display the Full Edited Area Forecast Discussion
Area Forecast Discussion, National Weather Service Boston/Norton MA, 253 PM EDT Sunday October 4, 2026
**What has Changed**
No significant changes to the forecast.
**Key Messages**
Scattered showers this afternoon into early morning Monday.
A sharp temperature drop is then expected for the start of the week, followed by a return to dry, fall-like conditions.
**Discussion**
**Key Message 1, Scattered showers this afternoon into early morning Monday**
High pressure south of the Maritimes no longer has enough influence to prevent clouds and scattered showers from spreading across southern New England this afternoon. The latest forecast guidance has shifted the area of greatest shower activity slightly farther south, close to the 40 degrees north, 70 degrees west benchmark shortly after midnight.
Because of this trend, the highest chances for rain remain across Cape Cod and the islands, while rain chances are lower farther inland. There could be a fairly sharp cutoff on the northwest edge of the rain, although there is still some uncertainty about exactly where that boundary will set up.
Rainfall totals should remain less than one half inch across Cape Cod and the islands, and generally less than one quarter inch north and west of the Cape Cod Canal.
Most showers are expected to move well offshore shortly after midnight, including away from the southern New England coastal waters around daybreak Monday.
**Key Message 2, A sharp temperature drop is then expected for the start of the week followed by a return to dry, fall-like conditions**
A deep area of low pressure will continue moving east across Quebec to start the week. Forecast guidance shows a significant push of colder air into northern New England, with the coldest air reaching the higher elevations late Monday night into early Tuesday morning.
As the low moves away, colder and drier Canadian air will plunge southward. Temperatures several thousand feet above the ground are expected to fall to around freezing or lower across the higher elevations late Monday night into early Tuesday morning. Colder air will also settle into the lower elevations, with temperatures generally remaining below 50 degrees through Tuesday night.
This setup will support overnight lows in the lower 40s and upper 30s Monday night. Tuesday night looks even cooler, with clearer skies and diminishing winds allowing temperatures to drop more efficiently.
By the middle of the week, winds higher in the atmosphere will shift from west-southwest to southwest as the low exits and high pressure to the south moves eastward. This shift, combined with dry conditions, will bring more seasonable temperatures back to the region during the second half of the week.
Forecast ensemble guidance also suggests a chance of afternoon highs reaching the lower 70s Thursday, particularly across the Connecticut Valley, Merrimack Valley, and coastal plain. Current probabilities range from about 20 to 60 percent, with the highest probabilities in the GEFS, the Global Ensemble Forecast System, and the lowest in the ECMWF ensemble forecast.
Overall, temperatures are expected to be mainly in the 60s during the second half of the week and into the weekend.
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: 62 Degrees - Low Temperature: 39 Degrees
(Tip: Place your cursor over the bar below to see the number)
Weather News/Headlines of Interest -
Updated Daily
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