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

73°F

23°C

Humidity 53%
Wind Speed NE 8 mph
Barometer 30.19 in (1022.0 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 15 Aug 8:52 am EDT
Extended Forecast for

Groton MA

  • Today

    Today: Sunny, with a high near 81. North wind around 7 mph becoming east in the afternoon.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, mostly clear, with a low around 57. Light and variable wind.

    Low: 57 °F

    Clear then
    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 86. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 86 °F

    Patchy Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 65. Southwest wind 3 to 5 mph.

    Low: 65 °F

    Mostly Clear

  • Sunday

    Sunday: A chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 92. Southwest wind 5 to 7 mph. Chance of precipitation is 40%.

    High: 92 °F

    Sunny then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. North wind around 6 mph. Chance of precipitation is 40%.

    Low: 58 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 76. North wind around 6 mph.

    High: 76 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 49. Calm wind.

    Low: 49 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 77 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 81. North wind around 7 mph becoming east in the afternoon.
Tonight
Patchy fog after 2am. Otherwise, mostly clear, with a low around 57. Light and variable wind.
Saturday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 86. Calm wind becoming southeast around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 65. Southwest wind 3 to 5 mph.
Sunday
A chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 92. Southwest wind 5 to 7 mph. Chance of precipitation is 40%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. North wind around 6 mph. Chance of precipitation is 40%.
Monday
Mostly sunny, with a high near 76. North wind around 6 mph.
Monday Night
Partly cloudy, with a low around 49. Calm wind.
Tuesday
Mostly sunny, with a high near 77. Calm wind becoming southeast around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 54. Southeast wind around 5 mph becoming calm in the evening.
Wednesday
Partly sunny, with a high near 77. Calm wind becoming southeast around 6 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 55. Light and variable wind.
Thursday
Sunny, with a high near 80. Calm wind becoming northeast around 6 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:
2:40 am EDT Aug 15, 2025
Forecast Valid:
9am EDT Aug 15, 2025-6pm EDT Aug 21, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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