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

77°F

25°C

Humidity 58%
Wind Speed Vrbl 6 mph
Barometer 30.04 in (1017.0 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 19 May 2:52 am EDT
Extended Forecast for

Bolton MA

Heat Advisory May 19, 11:00am until May 20, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: Mostly clear, with a low around 67. Southwest wind around 7 mph.

    Low: 67 °F

    Mostly Clear

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, mainly after 5pm. Mostly sunny and hot, with a high near 92. West wind 7 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

    High: 92 °F

    Sunny then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 7pm, then a chance of showers between 7pm and 8pm. Partly cloudy, with a low around 70. Southwest wind around 8 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Chance
    Showers then
    Mostly Clear

  • Wednesday

    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. Increasing clouds, with a high near 89. West wind 9 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Sunny then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers before 8pm. Partly cloudy, with a low around 52. Northwest wind 6 to 8 mph. Chance of precipitation is 30%.

    Low: 52 °F

    Chance
    Showers then
    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 67. North wind 6 to 8 mph.

    High: 67 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 44. North wind 3 to 5 mph.

    Low: 44 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 68. Light and variable wind.

    High: 68 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of showers after 4am. Mostly cloudy, with a low around 46. Light south wind. Chance of precipitation is 30%.

    Low: 46 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 67. Southwest wind around 7 mph.
Tuesday
A chance of showers and thunderstorms, mainly after 5pm. Mostly sunny and hot, with a high near 92. West wind 7 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Tuesday Night
A chance of showers and thunderstorms before 7pm, then a chance of showers between 7pm and 8pm. Partly cloudy, with a low around 70. Southwest wind around 8 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
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. Increasing clouds, with a high near 89. West wind 9 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers before 8pm. Partly cloudy, with a low around 52. Northwest wind 6 to 8 mph. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 67. North wind 6 to 8 mph.
Thursday Night
Partly cloudy, with a low around 44. North wind 3 to 5 mph.
Friday
Mostly sunny, with a high near 68. Light and variable wind.
Friday Night
A chance of showers after 4am. Mostly cloudy, with a low around 46. Light south wind. Chance of precipitation is 30%.
Saturday
Showers likely, mainly after 10am. Mostly cloudy, with a high near 58. Calm wind becoming east 5 to 7 mph in the afternoon. Chance of precipitation is 70%.
Saturday Night
Showers likely. Mostly cloudy, with a low around 45. Northeast wind 3 to 5 mph. Chance of precipitation is 60%.
Sunday
Showers likely. Mostly cloudy, with a high near 60. East wind 5 to 7 mph. Chance of precipitation is 60%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 46. Northeast wind 3 to 5 mph. Chance of precipitation is 30%.
Memorial Day
A chance of showers. Mostly cloudy, with a high near 67. Northeast wind 3 to 5 mph. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Bolton MA
 42.43°N 71.62°W (Elev. 548 ft)
Last Update:
2:28 am EDT May 19, 2026
Forecast Valid:
3am EDT May 19, 2026-6pm EDT May 25, 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