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

Laurence G Hanscom Field Airport (KBED)

Lat: 42.47°NLon: 71.29°WElev: 132ft.

Fair

29°F

-2°C

Humidity 30%
Wind Speed W 14 mph
Barometer 30.40 in (1031.1 mb)
Dewpoint 1°F (-17°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 18 Mar 10:51 am EDT
Extended Forecast for

Belmont MA

  • Today

    Today: Mostly sunny, with a high near 37. West wind around 6 mph.

    High: 37 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 28. South wind 3 to 6 mph.

    Low: 28 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 41. Southeast wind 3 to 8 mph.

    High: 41 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 31. Southwest wind around 6 mph.

    Low: 31 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 54. Southwest wind 5 to 7 mph.

    High: 54 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of rain, mainly after 1am. Mostly cloudy, with a low around 38. South wind around 7 mph. Chance of precipitation is 40%.

    Low: 38 °F

    Chance Rain

  • Saturday

    Saturday: A chance of rain. Mostly cloudy, with a high near 51. South wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.

    High: 51 °F

    Chance Rain

  • Saturday Night

    Saturday Night: A chance of rain after 2am. Mostly cloudy, with a low around 38. Southwest wind around 8 mph. Chance of precipitation is 30%.

    Low: 38 °F

    Mostly Cloudy
    then Chance
    Rain

  • Sunday

    Sunday: A chance of rain. Mostly cloudy, with a high near 56. West wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    High: 56 °F

    Chance Rain

Detailed Forecast

Today
Mostly sunny, with a high near 37. West wind around 6 mph.
Tonight
Partly cloudy, with a low around 28. South wind 3 to 6 mph.
Thursday
Mostly sunny, with a high near 41. Southeast wind 3 to 8 mph.
Thursday Night
Partly cloudy, with a low around 31. Southwest wind around 6 mph.
Friday
Mostly sunny, with a high near 54. Southwest wind 5 to 7 mph.
Friday Night
A chance of rain, mainly after 1am. Mostly cloudy, with a low around 38. South wind around 7 mph. Chance of precipitation is 40%.
Saturday
A chance of rain. Mostly cloudy, with a high near 51. South wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.
Saturday Night
A chance of rain after 2am. Mostly cloudy, with a low around 38. Southwest wind around 8 mph. Chance of precipitation is 30%.
Sunday
A chance of rain. Mostly cloudy, with a high near 56. West wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Sunday Night
A chance of rain before midnight. Partly cloudy, with a low around 35. Northwest wind around 9 mph. Chance of precipitation is 30%.
Monday
Sunny, with a high near 45. Northwest wind 10 to 13 mph, with gusts as high as 23 mph.
Monday Night
Mostly clear, with a low around 27. Northwest wind 7 to 9 mph.
Tuesday
Mostly sunny, with a high near 44. Northwest wind 7 to 9 mph becoming south in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Belmont MA
 42.4°N 71.18°W (Elev. 98 ft)
Last Update:
3:06 am EDT Mar 18, 2026
Forecast Valid:
11am EDT Mar 18, 2026-6pm EDT Mar 24, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation