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.

Overcast

75°F

24°C

Humidity 88%
Wind Speed W 3 mph
Barometer 30.04 in (1017.0 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 15 Jul 12:52 am EDT
Extended Forecast for

Lunenburg MASimilar City Names

Heat Advisory July 15, 11:00am until July 17, 07:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: A slight chance of showers before 3am. Cloudy, with a low around 69. Calm wind. Chance of precipitation is 20%.

    Low: 69 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 89. Heat index values as high as 95. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 89 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 68. Calm wind.

    Low: 68 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 91. Heat index values as high as 96. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 91 °F

    Hot

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 72. Southwest wind 3 to 5 mph. Chance of precipitation is 30%.

    Low: 72 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers before 11am, then showers likely and possibly a thunderstorm between 11am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 88. Southwest wind 5 to 8 mph. Chance of precipitation is 60%.

    High: 88 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 9pm. Partly cloudy, with a low around 72. West wind around 5 mph. Chance of precipitation is 30%.

    Low: 72 °F

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: A chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 84. Northwest wind around 7 mph. Chance of precipitation is 30%.

    High: 84 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 61. Light north wind.

    Low: 61 °F

    Partly Cloudy

Detailed Forecast

Overnight
A slight chance of showers before 3am. Cloudy, with a low around 69. Calm wind. Chance of precipitation is 20%.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 89. Heat index values as high as 95. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 68. Calm wind.
Wednesday
Sunny and hot, with a high near 91. Heat index values as high as 96. Calm wind becoming southwest around 6 mph in the afternoon.
Wednesday Night
A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 72. Southwest wind 3 to 5 mph. Chance of precipitation is 30%.
Thursday
A chance of showers before 11am, then showers likely and possibly a thunderstorm between 11am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 88. Southwest wind 5 to 8 mph. Chance of precipitation is 60%.
Thursday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 9pm. Partly cloudy, with a low around 72. West wind around 5 mph. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 84. Northwest wind around 7 mph. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 61. Light north wind.
Saturday
Mostly sunny, with a high near 82. Light and variable wind.
Saturday Night
Partly cloudy, with a low around 63. Calm wind.
Sunday
A chance of showers. Partly sunny, with a high near 81. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 40%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 64. Southwest wind 3 to 5 mph. Chance of precipitation is 40%.
Monday
Partly sunny, with a high near 81. Northwest wind around 6 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Lunenburg MASimilar City Names
 42.6°N 71.73°W (Elev. 541 ft)
Last Update:
12:32 am EDT Jul 15, 2025
Forecast Valid:
1am EDT Jul 15, 2025-6pm EDT Jul 21, 2025
 
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