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

41°F

5°C

Humidity 19%
Wind Speed N 9 mph
Barometer 30.07 in (1018.6 mb)
Dewpoint 2°F (-17°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 27 Mar 5:52 pm EDT
Extended Forecast for

Ayer MA

  • Tonight

    Tonight: Mostly clear, with a low around 21. North wind around 6 mph becoming calm in the evening.

    Low: 21 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 38. Northwest wind 5 to 7 mph.

    High: 38 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 23. Light west wind.

    Low: 23 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 49. Light southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 22 mph.

    High: 49 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 35. Southwest wind around 6 mph.

    Low: 35 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 59. West wind 5 to 11 mph, with gusts as high as 21 mph.

    High: 59 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 44. Light southwest wind.

    Low: 44 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of rain after 8am. Mostly cloudy, with a high near 68. Light south wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 40%.

    High: 68 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A chance of rain. Mostly cloudy, with a low around 58. Southwest wind around 8 mph. Chance of precipitation is 40%.

    Low: 58 °F

    Chance Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 21. North wind around 6 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 38. Northwest wind 5 to 7 mph.
Saturday Night
Partly cloudy, with a low around 23. Light west wind.
Sunday
Mostly sunny, with a high near 49. Light southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 22 mph.
Sunday Night
Mostly cloudy, with a low around 35. Southwest wind around 6 mph.
Monday
Mostly sunny, with a high near 59. West wind 5 to 11 mph, with gusts as high as 21 mph.
Monday Night
Mostly cloudy, with a low around 44. Light southwest wind.
Tuesday
A chance of rain after 8am. Mostly cloudy, with a high near 68. Light south wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 40%.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 58. Southwest wind around 8 mph. Chance of precipitation is 40%.
Wednesday
A chance of rain. Mostly cloudy, with a high near 73. Southwest wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 38. Northwest wind around 6 mph. Chance of precipitation is 50%.
Thursday
A chance of rain. Mostly cloudy, with a high near 47. North wind 6 to 8 mph. Chance of precipitation is 30%.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 33. Light northeast wind. Chance of precipitation is 40%.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 41. East wind 6 to 9 mph. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ayer MA
 42.56°N 71.59°W (Elev. 249 ft)
Last Update:
4:51 pm EDT Mar 27, 2026
Forecast Valid:
6pm EDT Mar 27, 2026-6pm EDT Apr 3, 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