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

74°F

23°C

Humidity 46%
Wind Speed SW 12 G 18 mph
Barometer 29.94 in (1013.6 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 26 May 8:52 pm EDT
Extended Forecast for

South Lancaster MA

  • Tonight

    Tonight: Partly cloudy, with a low around 61. Southwest wind around 6 mph.

    Low: 61 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 86. West wind 5 to 9 mph.

    High: 86 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 57. Light north wind.

    Low: 57 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: A slight chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 5pm, then showers likely and possibly a thunderstorm after 5pm. Partly sunny, with a high near 72. North wind 5 to 9 mph. Chance of precipitation is 60%.

    High: 72 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 50. Calm wind.

    Low: 50 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 71. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 71 °F

    Partly Sunny

  • Friday Night

    Friday Night: Showers likely, mainly after 1am. Mostly cloudy, with a low around 50. Calm wind becoming southwest around 5 mph after midnight. Chance of precipitation is 60%.

    Low: 50 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers likely, mainly before 9am. Partly sunny, with a high near 63. North wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

    High: 63 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers before 10pm. Partly cloudy, with a low around 45. Northwest wind 3 to 6 mph. Chance of precipitation is 30%.

    Low: 45 °F

    Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 61. Southwest wind around 6 mph.
Wednesday
Partly sunny, with a high near 86. West wind 5 to 9 mph.
Wednesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 57. Light north wind.
Thursday
A slight chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 5pm, then showers likely and possibly a thunderstorm after 5pm. Partly sunny, with a high near 72. North wind 5 to 9 mph. Chance of precipitation is 60%.
Thursday Night
Partly cloudy, with a low around 50. Calm wind.
Friday
Partly sunny, with a high near 71. Calm wind becoming northwest around 6 mph in the afternoon.
Friday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 50. Calm wind becoming southwest around 5 mph after midnight. Chance of precipitation is 60%.
Saturday
Showers likely, mainly before 9am. Partly sunny, with a high near 63. North wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Saturday Night
A chance of showers before 10pm. Partly cloudy, with a low around 45. Northwest wind 3 to 6 mph. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 67. Northwest wind 5 to 8 mph.
Sunday Night
Partly cloudy, with a low around 49. Calm wind.
Monday
A chance of showers. Partly sunny, with a high near 69. Calm wind becoming north 5 to 7 mph in the afternoon. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 48. Calm wind.
Tuesday
Mostly sunny, with a high near 73. Calm wind becoming northeast around 6 mph in the afternoon.
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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:
3:24 pm EDT May 26, 2026
Forecast Valid:
9pm EDT May 26, 2026-6pm EDT Jun 2, 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