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Chelmsford, MA Weather
Current conditions
Observed at Laurence G Hanscom Field Airport · 47 min ago
Forecast
10-day-
Friday Night
Areas of frost after 11pm. Mostly clear, with a low around 30. Northwest wind around 3 mph.
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Saturday
Areas of frost before 10am. Sunny, with a high near 58. West wind around 3 mph.
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Saturday Night
Clear, with a low around 31. West wind around 2 mph.
National Weather Service forecast updated 2 days ago.
Hourly
Hourly forecast- Now33°
- 2 AM33°
- 3 AM32°
- 4 AM32°
- 5 AM31°
- 6 AM30°
- 7 AM30°
- 8 AM31°
- 9 AM36°
- 10 AM42°
- 11 AM48°
- 12 PM52°
- 1 PM55°
- 2 PM57°
- 3 PM58°
- 4 PM58°
- 5 PM56°
- 6 PM53°
- 7 PM50°
- 8 PM46°
- 9 PM43°
- 10 PM40°
- 11 PM38°
- Sun12 AM36°
10-day forecast
Details- WedOct 21Mostly Sunny41°54°
- ThuOct 22Mostly Sunny34°61°
- FriOct 23Patchy Frost then Sunny30°54°
- TodayOct 24Areas Of Frost then Sunny31°58°
- SunOct 25Sunny39°64°
- MonOct 26Sunny41°67°
- TueOct 27Mostly Sunny35°58°
- WedOct 28Partly cloudy36°54°
- ThuOct 29Partly cloudy36°60°
- FriOct 30Cloudy0.02 in55°67°
Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.
Radar
Full mapWeather news near Chelmsford
More weather news-
Video: Gusty, cooler WednesdayWednesday is impact weather with gusty winds and much cooler air across Massachusetts, with a chance for rain on the Cape this afternoon. StormTeam 5 tools: Radar | Map Room | Alerts | Futurecast Thursday brings some…
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Video: Rain returns to the Cape WednesdayMore clouds arrive Wednesday across the Boston area and Massachusetts, with afternoon rain possible on the Cape. Thursday brings some clouds and breezy conditions before pleasant weather Friday. The weekend turns cooler…
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What Boston meteorologists are saying about the timing and impacts of a passing nor’easter this weekWhat Boston meteorologists are saying about the timing and impacts of a passing nor'easter this week Boston.com Add Boston.com as your preferred source on Google to see more of our stories. National Weather Service…
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Video: Sunny with gusty windsTuesday brings gusty winds with partly sunny skies to the Boston area. Wednesday has sun and clouds with gusty winds, while Thursday is breezy with some clouds. Pleasant weather arrives Friday, followed by a cool…
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Video: Pleasant weather takes over later this weekGusty winds are expected Tuesday across the Boston area and Massachusetts. Coastal clouds linger Wednesday before sun and clouds mix Thursday, followed by pleasant weather Friday. The weekend turns cooler Saturday…
- Boston Basks In Sunny Sunday Before Blustery, Mostly Dry Week Of Coastal Gales
Boston is starting Sunday clear and chilly, with temperatures near 37 degrees before sunshine takes over and pushes the city toward a high of 55. The calm, bright day offers a welcome outdoor window before stronger…
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Video: Monday clouds, fall weather aheadA cold morning is expected Sunday across the Boston area and Massachusetts, with a high of 54. Clouds linger along the coast Monday before seasonable weather Tuesday. A fall feel settles in Wednesday, followed by a mix…
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New England nor'easter to bring gusty winds, possible showersThe growing season came to an end for much of the area Sunday morning, with many places away from the coast down into the 20s. If you didn’t cover or bring in tender vegetation, it’s likely gone. Look for a frosty start…
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Video: Cold start, fall feel aheadA cold morning is expected Sunday across the Boston area and Massachusetts, with a high of 54. Clouds linger along the coast Monday before seasonable weather Tuesday. A fall feel settles in Wednesday, followed by a mix…
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Video: Cold Sunday morning, fall-feel week aheadSunday starts with a cold morning across the Boston area, with temperatures only reaching the mid-50s. Monday brings extra clouds, followed by a seasonable Tuesday. A fall-feel pattern settles in Wednesday, with cooler…
Air quality
Air quality is satisfactory, and air pollution poses little or no risk.
Forecast
- SatGood
West Middlesex, MA reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.
Sun & moon
Almanac
MonthlyLowell, records since 1885. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Nearby
- Boston 37 km
- Worcester 52 km
- Lowell 6 km
- Cambridge 33 km
- Manchester 45 km
- Dorchester 41 km
- Quincy 49 km
- Lynn 37 km
- Newton 32 km
- Nashua 20 km
- Somerville 32 km
- Lawrence 21 km
Forecasters' discussion
From the National Weather Service office in BOX, issued 6 hrs ago
What Has Changed
No significant changes have been made to the forecast.
Key Messages
- Dry weather through the weekend with chilly/frosty nights and sunny/mild afternoons. Lows mainly in the 20s & 30s with highs in the upper 50s-lower 60s Sat and well into the 60s Sun.
- High pressure dominates through next week bringing plenty of sunny days and cooler nights.
Discussion
KEY MESSAGE 1...Dry weather through the weekend with chilly/frosty nights and sunny/mild afternoons. Lows mainly in the 20s & 30s with highs in the upper 50s-lower 60s Sat and well into the 60s Sun.
Distant offshore ocean storm will continue to lift NE and move further way losing its grip on our region. Lingering gusty winds across the Cape/Islands will diminish early this evening. Otherwise...a large 1035+ mb high pressure system will build overhead from the west through the weekend. The result will be mainly clear skies with chilly/frosty nights and mild sunny afternoons. Excellent radiational cooling conditions will allow for lows to drop into the 20s across the normally colder outlying locations with mainly 30s elsewhere. Meanwhile the Urban Heat Island of Boston will probably not drop below 40. Highs Sat will recover nicely into the upper 50s and lower 60s and well into the 60s Sun. Winds will also be rather light resulting in comfortable afternoons for the latter half of October.
KEY MESSAGE 2...High pressure dominates through next week, bringing plenty of sunny days and cooler nights.
Strong high pressure will prevail across New England for most of next week. Mostly sunny skies, dry conditions, and mostly calm winds are expected for a majority of the week, leading to good radiational cooling most nights. Day time temperatures are likely to remain in the upper 50s to mid 60s and nighttime temps generally in the low to mid 30s for most of southern New England.
Two exceptions to the pleasant conditions: a weak cold front drops into the region Tuesday, leading to some gusty winds Tuesday afternoon/evening along the Cape/Islands/SE MA and cooler temperatures behind the front on Wednesday (likely in the low 50s). This front looks to be moisture-starved and not likely to produce any showers at this time.
A second cold front looks to sweep through sometime Thursday night/early Friday morning, bringing some slightly increased PoPs (10-20) to portions of SNE.
Aviation
Forecaster Confidence Levels...
Low - less than 30 percent. Moderate - 30 to 60 percent. High - greater than 60 percent.
00z TAF Update...High confidence.
VFR conditions continue through the weekend. Calm winds to less than 5 kts increase to 5-10 kts around daybreak. Couple hours of upper lever cirrus possible tonight with SKC returning by sunrise.
KBOS Terminal...High confidence in TAF.
KBDL Terminal...High confidence in TAF.
Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.