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

78°F

26°C

Humidity 54%
Wind Speed SW 5 mph
Barometer 30.09 in (1019.0 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 30 Aug 12:52 pm EDT
Extended Forecast for

Groton MA

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 84. Southwest wind around 8 mph.

    High: 84 °F

    Mostly Cloudy

  • Tonight

    Tonight: Cloudy during the early evening, then gradual clearing, with a low around 59. Southwest wind around 5 mph becoming calm in the evening.

    Low: 59 °F

    Gradual
    Clearing

  • Monday

    Monday: Sunny, with a high near 83. Calm wind.

    High: 83 °F

    Sunny

  • Monday Night

    Monday Night: Showers likely, mainly after 5am. Mostly cloudy, with a low around 60. Calm wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 60 °F

    Partly Cloudy
    then Showers
    Likely

  • Tuesday

    Tuesday: Showers, with thunderstorms also possible after 2pm. High near 74. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 90%.

    High: 74 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely before 2am, then a slight chance of showers between 2am and 3am. Mostly cloudy, with a low around 56. Light east wind. Chance of precipitation is 60%.

    Low: 56 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers after 2pm. Mostly cloudy, with a high near 73. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 30%.

    High: 73 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after 10pm. Mostly cloudy, with a low around 57. Calm wind. Chance of precipitation is 60%.

    Low: 57 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers. Mostly cloudy, with a high near 74. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 50%.

    High: 74 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 84. Southwest wind around 8 mph.
Tonight
Cloudy during the early evening, then gradual clearing, with a low around 59. Southwest wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 83. Calm wind.
Monday Night
Showers likely, mainly after 5am. Mostly cloudy, with a low around 60. Calm wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
Showers, with thunderstorms also possible after 2pm. High near 74. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 90%.
Tuesday Night
Showers and thunderstorms likely before 2am, then a slight chance of showers between 2am and 3am. Mostly cloudy, with a low around 56. Light east wind. Chance of precipitation is 60%.
Wednesday
A chance of showers after 2pm. Mostly cloudy, with a high near 73. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 30%.
Wednesday Night
Showers likely, mainly after 10pm. Mostly cloudy, with a low around 57. Calm wind. Chance of precipitation is 60%.
Thursday
A chance of showers. Mostly cloudy, with a high near 74. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 50%.
Thursday Night
A chance of showers before 3am. Mostly cloudy, with a low around 58. Calm wind. Chance of precipitation is 40%.
Friday
A chance of showers. Partly sunny, with a high near 74. North wind 3 to 6 mph. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 55. Light northwest wind.
Saturday
A chance of showers. Partly sunny, with a high near 73. North wind 3 to 6 mph. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Groton MA
 42.6°N 71.58°W (Elev. 299 ft)
Last Update:
8:57 am EDT Aug 30, 2026
Forecast Valid:
1pm EDT Aug 30, 2026-6pm EDT Sep 5, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation