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

55°F

13°C

Humidity 87%
Wind Speed Calm
Barometer 29.71 in (1006.3 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 16 Apr 11:52 pm EDT
Extended Forecast for

Ayer MA

  • Overnight

    Overnight: A slight chance of showers before 1am, then a chance of showers after 3am. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 57. Light north wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 57 °F

    Chance
    Showers and
    Patchy Fog

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 11am. Patchy fog before 7am. Otherwise, cloudy, with a high near 72. Calm wind becoming north 5 to 8 mph in the morning. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 72 °F

    Chance
    Showers and
    Patchy Fog

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 49. Light and variable wind.

    Low: 49 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 61. Calm wind becoming east 5 to 7 mph in the morning.

    High: 61 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A chance of showers, mainly after 4am. Mostly cloudy, with a low around 45. Light and variable wind. Chance of precipitation is 30%.

    Low: 45 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers, mainly after 9am. High near 59. South wind 5 to 9 mph becoming west in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%.

    High: 59 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly before 8pm. Mostly cloudy, with a low around 33. West wind around 7 mph. Chance of precipitation is 60%.

    Low: 33 °F

    Showers
    Likely then
    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 47. Northwest wind 8 to 11 mph, with gusts as high as 21 mph.

    High: 47 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 27. Northwest wind around 5 mph becoming calm in the evening.

    Low: 27 °F

    Mostly Clear

Detailed Forecast

Overnight
A slight chance of showers before 1am, then a chance of showers after 3am. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 57. Light north wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A chance of showers, with thunderstorms also possible after 11am. Patchy fog before 7am. Otherwise, cloudy, with a high near 72. Calm wind becoming north 5 to 8 mph in the morning. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Mostly cloudy, with a low around 49. Light and variable wind.
Saturday
Mostly cloudy, with a high near 61. Calm wind becoming east 5 to 7 mph in the morning.
Saturday Night
A chance of showers, mainly after 4am. Mostly cloudy, with a low around 45. Light and variable wind. Chance of precipitation is 30%.
Sunday
Showers, mainly after 9am. High near 59. South wind 5 to 9 mph becoming west in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%.
Sunday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 33. West wind around 7 mph. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 47. Northwest wind 8 to 11 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 27. Northwest wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 53. Southwest wind 3 to 7 mph.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 38. South wind around 6 mph. Chance of precipitation is 30%.
Wednesday
A chance of showers. Partly sunny, with a high near 62. West wind 6 to 9 mph. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 38. Light northwest wind.
Thursday
Mostly sunny, with a high near 61. Northwest wind 3 to 7 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Ayer MA
 42.56°N 71.59°W (Elev. 249 ft)
Last Update:
6:34 pm EDT Apr 16, 2026
Forecast Valid:
12am EDT Apr 17, 2026-6pm EDT Apr 23, 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