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

70°F

21°C

Humidity 55%
Wind Speed Calm
Barometer 30.20 in (1022.5 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 24 Jul 9:52 pm EDT
Extended Forecast for

Ayer MA

  • Tonight

    Tonight: Clear, with a low around 54. Light and variable wind.

    Low: 54 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 83. Calm wind becoming southeast 5 to 7 mph in the afternoon.

    High: 83 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 53. Southeast wind around 6 mph becoming calm in the evening.

    Low: 53 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 80. Calm wind becoming east 5 to 7 mph in the afternoon.

    High: 80 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 53. Light and variable wind.

    Low: 53 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 83. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 83 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 60. South wind around 5 mph becoming calm in the evening.

    Low: 60 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 79. South wind 3 to 8 mph. Chance of precipitation is 70%.

    High: 79 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. South wind 3 to 5 mph. Chance of precipitation is 70%.

    Low: 64 °F

    Showers
    Likely

Detailed Forecast

Tonight
Clear, with a low around 54. Light and variable wind.
Saturday
Sunny, with a high near 83. Calm wind becoming southeast 5 to 7 mph in the afternoon.
Saturday Night
Clear, with a low around 53. Southeast wind around 6 mph becoming calm in the evening.
Sunday
Sunny, with a high near 80. Calm wind becoming east 5 to 7 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 53. Light and variable wind.
Monday
Mostly sunny, with a high near 83. Calm wind becoming southeast around 6 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 60. South wind around 5 mph becoming calm in the evening.
Tuesday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 79. South wind 3 to 8 mph. Chance of precipitation is 70%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. South wind 3 to 5 mph. Chance of precipitation is 70%.
Wednesday
A chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 79. Southeast wind 5 to 7 mph. Chance of precipitation is 60%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Light and variable wind. Chance of precipitation is 40%.
Thursday
A chance of showers. Partly sunny, with a high near 82. Northwest wind 3 to 6 mph. Chance of precipitation is 40%.
Thursday Night
Partly cloudy, with a low around 60. Calm wind.
Friday
Mostly sunny, with a high near 82. Calm wind becoming northwest around 5 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ayer MA
 42.56°N 71.56°W (Elev. 249 ft)
Last Update:
6:30 pm EDT Jul 24, 2026
Forecast Valid:
10pm EDT Jul 24, 2026-6pm EDT Jul 31, 2026
 
Forecast Discussion
 
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Additional Resources

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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