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

75°F

24°C

Humidity 50%
Wind Speed SE 8 mph
Barometer 30.11 in (1020.7 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 14 May 3:51 pm EDT
Extended Forecast for

Belmont MA

  • Tonight

    Tonight: A chance of showers after 4am. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 58. Southeast wind 3 to 7 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 58 °F

    Mostly Cloudy
    then Chance
    Showers and
    Patchy Fog

  • Thursday

    Thursday: Scattered showers and thunderstorms before 4pm, then scattered showers and thunderstorms after 5pm. Patchy fog before 1pm. Otherwise, mostly cloudy, with a high near 71. Southeast wind 3 to 6 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 71 °F

    Scattered
    T-storms and
    Patchy Fog

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 60. East wind around 5 mph becoming calm in the evening.

    Low: 60 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 78. Calm wind becoming south around 6 mph in the afternoon.

    High: 78 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, mainly after 7pm. Mostly cloudy, with a low around 62. South wind 3 to 5 mph. Chance of precipitation is 30%.

    Low: 62 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 3pm, then showers likely and possibly a thunderstorm after 3pm. Mostly cloudy, with a high near 76. Light south wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 60%.

    High: 76 °F

    Chance
    Showers then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely, mainly before midnight. Mostly cloudy, with a low around 59. South wind around 7 mph becoming west after midnight. Chance of precipitation is 60%.

    Low: 59 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers after 10am. Mostly sunny, with a high near 74. West wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 74 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 52. West wind around 8 mph.

    Low: 52 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of showers after 4am. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 58. Southeast wind 3 to 7 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Scattered showers and thunderstorms before 4pm, then scattered showers and thunderstorms after 5pm. Patchy fog before 1pm. Otherwise, mostly cloudy, with a high near 71. Southeast wind 3 to 6 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Mostly cloudy, with a low around 60. East wind around 5 mph becoming calm in the evening.
Friday
Partly sunny, with a high near 78. Calm wind becoming south around 6 mph in the afternoon.
Friday Night
A chance of showers and thunderstorms, mainly after 7pm. Mostly cloudy, with a low around 62. South wind 3 to 5 mph. Chance of precipitation is 30%.
Saturday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 3pm, then showers likely and possibly a thunderstorm after 3pm. Mostly cloudy, with a high near 76. Light south wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 60%.
Saturday Night
Showers likely, mainly before midnight. Mostly cloudy, with a low around 59. South wind around 7 mph becoming west after midnight. Chance of precipitation is 60%.
Sunday
A chance of showers after 10am. Mostly sunny, with a high near 74. West wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 52. West wind around 8 mph.
Monday
Mostly sunny, with a high near 64. Northwest wind around 11 mph, with gusts as high as 21 mph.
Monday Night
Mostly cloudy, with a low around 47. Northwest wind 7 to 9 mph.
Tuesday
Partly sunny, with a high near 62. North wind around 10 mph.
Tuesday Night
Mostly cloudy, with a low around 48. North wind around 6 mph.
Wednesday
Partly sunny, with a high near 62. North wind around 8 mph.
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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:
11:41 am EDT May 14, 2025
Forecast Valid:
5pm EDT May 14, 2025-6pm EDT May 21, 2025
 
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