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

82°F

28°C

Humidity 31%
Wind Speed Vrbl 6 mph
Barometer 29.90 in (1012.3 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 26 Jul 1:52 pm EDT
Extended Forecast for

South Lancaster MA

  • This Afternoon

    This Afternoon: Sunny, with a high near 79. East wind around 5 mph.

    High: 79 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 54. East wind around 5 mph becoming calm in the evening.

    Low: 54 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 84. Light and variable wind.

    High: 84 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 60. Light south wind.

    Low: 60 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Showers likely, with thunderstorms also possible after 2pm. Partly sunny, with a high near 81. Calm wind becoming south 5 to 8 mph in the morning. Chance of precipitation is 60%.

    High: 81 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers, then showers and possibly a thunderstorm after 2am. Low around 60. South wind 3 to 6 mph. Chance of precipitation is 80%.

    Low: 60 °F

    Chance
    Showers then
    Showers

  • Wednesday

    Wednesday: Showers, with thunderstorms also possible after 8am. High near 75. East wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 80%.

    High: 75 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers. Low around 59. North wind 6 to 8 mph. Chance of precipitation is 80%.

    Low: 59 °F

    Showers

  • Thursday

    Thursday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 76. North wind around 8 mph. Chance of precipitation is 60%.

    High: 76 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Sunny, with a high near 79. East wind around 5 mph.
Tonight
Mostly clear, with a low around 54. East wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 84. Light and variable wind.
Monday Night
Partly cloudy, with a low around 60. Light south wind.
Tuesday
Showers likely, with thunderstorms also possible after 2pm. Partly sunny, with a high near 81. Calm wind becoming south 5 to 8 mph in the morning. Chance of precipitation is 60%.
Tuesday Night
A chance of showers, then showers and possibly a thunderstorm after 2am. Low around 60. South wind 3 to 6 mph. Chance of precipitation is 80%.
Wednesday
Showers, with thunderstorms also possible after 8am. High near 75. East wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 80%.
Wednesday Night
Showers. Low around 59. North wind 6 to 8 mph. Chance of precipitation is 80%.
Thursday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 76. North wind around 8 mph. Chance of precipitation is 60%.
Thursday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 1am. Mostly cloudy, with a low around 60. Light northwest wind. Chance of precipitation is 40%.
Friday
A chance of showers. Mostly sunny, with a high near 80. Northwest wind 3 to 5 mph. Chance of precipitation is 30%.
Friday Night
A chance of showers. Partly cloudy, with a low around 62. Calm wind. Chance of precipitation is 30%.
Saturday
A chance of showers. Mostly sunny, with a high near 84. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Lancaster MA
 42.44°N 71.68°W (Elev. 249 ft)
Last Update:
7:21 am EDT Jul 26, 2026
Forecast Valid:
1pm EDT Jul 26, 2026-6pm EDT Aug 1, 2026
 
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