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

72°F

22°C

Humidity 64%
Wind Speed Calm
Barometer 30.06 in (1017.7 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 25 Jun 7:52 pm EDT
Extended Forecast for

South Lancaster MA

  • Tonight

    Tonight: Showers likely, mainly after 5am. Mostly cloudy, with a low around 64. Calm wind becoming south around 5 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 64 °F

    Mostly Cloudy
    then Showers
    Likely

  • Friday

    Friday: Showers and thunderstorms likely, mainly before 10am. Cloudy, then gradually becoming mostly sunny, with a high near 79. Southwest wind 5 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Showers
    Likely then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 11pm. Increasing clouds, with a low around 64. Light west wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Saturday

    Saturday: A chance of showers, mainly after 8am. Mostly cloudy, with a high near 78. Light and variable wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 78 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 59. Calm wind.

    Low: 59 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 85. Light north wind.

    High: 85 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 61. Calm wind.

    Low: 61 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 88. Calm wind.

    High: 88 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Partly Cloudy

Detailed Forecast

Tonight
Showers likely, mainly after 5am. Mostly cloudy, with a low around 64. Calm wind becoming south around 5 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Showers and thunderstorms likely, mainly before 10am. Cloudy, then gradually becoming mostly sunny, with a high near 79. Southwest wind 5 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 11pm. Increasing clouds, with a low around 64. Light west wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers, mainly after 8am. Mostly cloudy, with a high near 78. Light and variable wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Partly cloudy, with a low around 59. Calm wind.
Sunday
Mostly sunny, with a high near 85. Light north wind.
Sunday Night
Mostly clear, with a low around 61. Calm wind.
Monday
Sunny, with a high near 88. Calm wind.
Monday Night
Partly cloudy, with a low around 64. Calm wind.
Tuesday
Mostly sunny and hot, with a high near 90. Calm wind becoming west around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 66. Calm wind.
Wednesday
Mostly sunny, with a high near 89. Calm wind becoming south 5 to 7 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 69. South wind around 5 mph becoming light and variable in the evening.
Thursday
Mostly sunny and hot, with a high near 94. West wind 5 to 8 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
South Lancaster MA
 42.44°N 71.68°W (Elev. 249 ft)
Last Update:
7:04 pm EDT Jun 25, 2026
Forecast Valid:
8pm EDT Jun 25, 2026-6pm EDT Jul 2, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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