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

54°F

12°C

Humidity 40%
Wind Speed S 15 G 23 mph
Barometer 29.95 in (1015.8 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 20 Mar 12:51 pm EDT
Extended Forecast for

Belmont MA

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 55. South wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 55 °F

    Mostly Cloudy

  • Tonight

    Tonight: Showers, mainly before 1am. Low around 41. Southwest wind 8 to 16 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 41 °F

    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 52. Northwest wind 8 to 15 mph, with gusts as high as 26 mph.

    High: 52 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 35. Northwest wind 5 to 8 mph becoming light and variable after midnight.

    Low: 35 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A chance of rain before 9am, then a chance of rain and snow between 9am and 11am, then rain likely after 11am. Cloudy, with a high near 49. South wind 6 to 9 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 49 °F

    Chance
    Rain/Snow
    then Rain
    Likely

  • Sunday Night

    Sunday Night: Rain likely. Cloudy, with a low around 36. North wind around 7 mph. Chance of precipitation is 70%.

    Low: 36 °F

    Rain Likely

  • Monday

    Monday: A chance of rain and snow before 9am, then a chance of rain between 9am and 4pm. Mostly cloudy, with a high near 42. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.

    High: 42 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 27. Northwest wind around 7 mph.

    Low: 27 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 42. Northwest wind around 8 mph.

    High: 42 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 55. South wind 6 to 10 mph, with gusts as high as 20 mph.
Tonight
Showers, mainly before 1am. Low around 41. Southwest wind 8 to 16 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Mostly sunny, with a high near 52. Northwest wind 8 to 15 mph, with gusts as high as 26 mph.
Saturday Night
Increasing clouds, with a low around 35. Northwest wind 5 to 8 mph becoming light and variable after midnight.
Sunday
A chance of rain before 9am, then a chance of rain and snow between 9am and 11am, then rain likely after 11am. Cloudy, with a high near 49. South wind 6 to 9 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Sunday Night
Rain likely. Cloudy, with a low around 36. North wind around 7 mph. Chance of precipitation is 70%.
Monday
A chance of rain and snow before 9am, then a chance of rain between 9am and 4pm. Mostly cloudy, with a high near 42. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Monday Night
Mostly cloudy, with a low around 27. Northwest wind around 7 mph.
Tuesday
Mostly sunny, with a high near 42. Northwest wind around 8 mph.
Tuesday Night
Partly cloudy, with a low around 30. Southwest wind around 6 mph.
Wednesday
Partly sunny, with a high near 48. West wind 7 to 11 mph.
Wednesday Night
Partly cloudy, with a low around 29. Northwest wind around 7 mph.
Thursday
A chance of rain and snow. Mostly cloudy, with a high near 49. Northwest wind 7 to 10 mph becoming south in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Belmont MA
 42.4°N 71.18°W (Elev. 98 ft)
Last Update:
11:57 am EDT Mar 20, 2026
Forecast Valid:
12pm EDT Mar 20, 2026-6pm EDT Mar 26, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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