National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Fitchburg, Fitchburg Municipal Airport (KFIT)

Lat: 42.55°NLon: 71.76°WElev: 348ft.

Fair

74°F

23°C

Humidity 71%
Wind Speed Calm
Barometer 29.91 in (1012.8 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 1 Jul 5:52 am EDT
Extended Forecast for

Sterling MA

Extreme Heat Warning July 1, 10:00am until July 4, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning

  • Today

    Today: A chance of showers and thunderstorms, mainly after 11am. Mostly sunny and hot, with a high near 96. Heat index values as high as 104. Southwest wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 96 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms. Mostly cloudy, with a low around 76. Southwest wind around 9 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 76 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers and thunderstorms before 7am. Mostly sunny and hot, with a high near 100. Heat index values as high as 109. West wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    High: 100 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 77. West wind around 8 mph.

    Low: 77 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 98. West wind 9 to 11 mph, with gusts as high as 23 mph.

    High: 98 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 74. West wind 5 to 9 mph.

    Low: 74 °F

    Mostly Clear

  • Independence Day

    Independence Day: Sunny and hot, with a high near 94. West wind 5 to 9 mph, with gusts as high as 20 mph.

    High: 94 °F

    Hot

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 69. Light west wind.

    Low: 69 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers after 2pm. Partly sunny, with a high near 89. North wind 3 to 5 mph. Chance of precipitation is 30%.

    High: 89 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

Today
A chance of showers and thunderstorms, mainly after 11am. Mostly sunny and hot, with a high near 96. Heat index values as high as 104. Southwest wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 76. Southwest wind around 9 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A slight chance of showers and thunderstorms before 7am. Mostly sunny and hot, with a high near 100. Heat index values as high as 109. West wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Thursday Night
Mostly clear, with a low around 77. West wind around 8 mph.
Friday
Sunny and hot, with a high near 98. West wind 9 to 11 mph, with gusts as high as 23 mph.
Friday Night
Mostly clear, with a low around 74. West wind 5 to 9 mph.
Independence Day
Sunny and hot, with a high near 94. West wind 5 to 9 mph, with gusts as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 69. Light west wind.
Sunday
A chance of showers after 2pm. Partly sunny, with a high near 89. North wind 3 to 5 mph. Chance of precipitation is 30%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 65. Light south wind. Chance of precipitation is 50%.
Monday
Showers likely. Mostly cloudy, with a high near 83. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 60%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 64. Light and variable wind. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 83. East wind 3 to 6 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sterling MA
 42.43°N 71.74°W (Elev. 650 ft)
Last Update:
4:30 am EDT Jul 1, 2026
Forecast Valid:
6am EDT Jul 1, 2026-6pm EDT Jul 7, 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