National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Fitchburg, Fitchburg Municipal Airport (KFIT)

Lat: 42.55°NLon: 71.76°WElev: 348ft.

Fair

69°F

21°C

Humidity 47%
Wind Speed Calm
Barometer 30.19 in (1022.4 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 3 Oct 5:52 pm EDT
Extended Forecast for

Groton MA

  • Tonight

    Tonight: Mostly clear, with a low around 42. Southwest wind around 6 mph becoming calm in the evening.

    Low: 42 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 81. Light west wind.

    High: 81 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 52. Calm wind.

    Low: 52 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 83. Light and variable wind.

    High: 83 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 54. Calm wind.

    Low: 54 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 83. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 83 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 56. Southwest wind 3 to 6 mph.

    Low: 56 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 80. Southwest wind 6 to 9 mph, with gusts as high as 23 mph.

    High: 80 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Showers likely, mainly after 3am. Mostly cloudy, with a low around 55. Southwest wind 6 to 8 mph. Chance of precipitation is 60%.

    Low: 55 °F

    Showers
    Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 42. Southwest wind around 6 mph becoming calm in the evening.
Saturday
Sunny, with a high near 81. Light west wind.
Saturday Night
Mostly clear, with a low around 52. Calm wind.
Sunday
Sunny, with a high near 83. Light and variable wind.
Sunday Night
Clear, with a low around 54. Calm wind.
Monday
Sunny, with a high near 83. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Monday Night
Mostly clear, with a low around 56. Southwest wind 3 to 6 mph.
Tuesday
Mostly sunny, with a high near 80. Southwest wind 6 to 9 mph, with gusts as high as 23 mph.
Tuesday Night
Showers likely, mainly after 3am. Mostly cloudy, with a low around 55. Southwest wind 6 to 8 mph. Chance of precipitation is 60%.
Wednesday
Showers likely, mainly before noon. Mostly cloudy, with a high near 68. Northwest wind 6 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 40. North wind 3 to 6 mph. Chance of precipitation is 30%.
Thursday
Sunny, with a high near 59. North wind around 6 mph.
Thursday Night
Mostly clear, with a low around 35. Calm wind.
Friday
Sunny, with a high near 64. Calm wind becoming southwest around 5 mph in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Groton MA
 42.6°N 71.58°W (Elev. 299 ft)
Last Update:
6:10 pm EDT Oct 3, 2025
Forecast Valid:
6pm EDT Oct 3, 2025-6pm EDT Oct 10, 2025
 
Forecast Discussion
 
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Additional Resources

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Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation