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.

Mostly Cloudy

75°F

24°C

Humidity 76%
Wind Speed Vrbl 3 mph
Barometer 29.85 in (1010.6 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 14 Aug 12:52 am EDT
Extended Forecast for

South Lancaster MA

  • Overnight

    Overnight: Mostly cloudy, with a low around 69. Light southwest wind.

    Low: 69 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers and thunderstorms, mainly between noon and 5pm. Partly sunny, with a high near 87. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 64. Light north wind.

    Low: 64 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 81. Northeast wind around 6 mph.

    High: 81 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 59. Light and variable wind.

    Low: 59 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 86. Calm wind becoming south around 5 mph in the afternoon.

    High: 86 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 64. Southwest wind 3 to 5 mph.

    Low: 64 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 90. Southwest wind 6 to 8 mph.

    High: 90 °F

    Hot

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 63. Southwest wind around 6 mph becoming north after midnight.

    Low: 63 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 69. Light southwest wind.
Thursday
A chance of showers and thunderstorms, mainly between noon and 5pm. Partly sunny, with a high near 87. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Partly cloudy, with a low around 64. Light north wind.
Friday
Mostly sunny, with a high near 81. Northeast wind around 6 mph.
Friday Night
Mostly clear, with a low around 59. Light and variable wind.
Saturday
Sunny, with a high near 86. Calm wind becoming south around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 64. Southwest wind 3 to 5 mph.
Sunday
Sunny and hot, with a high near 90. Southwest wind 6 to 8 mph.
Sunday Night
Partly cloudy, with a low around 63. Southwest wind around 6 mph becoming north after midnight.
Monday
Mostly sunny, with a high near 77. Northeast wind around 6 mph.
Monday Night
Partly cloudy, with a low around 55. Light southeast wind.
Tuesday
Partly sunny, with a high near 73. Calm wind becoming southeast around 6 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 57. Southeast wind around 6 mph becoming calm in the evening.
Wednesday
Partly sunny, with a high near 75. East wind 5 to 7 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South Lancaster MA
 42.44°N 71.71°W (Elev. 456 ft)
Last Update:
12:36 am EDT Aug 14, 2025
Forecast Valid:
1am EDT Aug 14, 2025-6pm EDT Aug 20, 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