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

Hazardous Weather Conditions

Current conditions at

Laurence G Hanscom Field Airport (KBED)

Lat: 42.47°NLon: 71.29°WElev: 132ft.

Overcast

40°F

4°C

Humidity 36%
Wind Speed E 12 mph
Barometer 30.47 in (1033.5 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 15 Mar 1:51 pm EDT
Extended Forecast for

Belmont MA

Flood Watch March 16, 05:00am until March 17, 08:00am
High Wind Watch March 16, 05:00pm until March 17, 06:00am
Click here for hazard details and duration
Flood Watch
High Wind Watch

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 42. East wind around 8 mph.

    High: 42 °F

    Mostly Cloudy

  • Tonight

    Tonight: Rain likely, mainly after 5am. Increasing clouds, with a low around 37. Southeast wind around 8 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 37 °F

    Mostly Cloudy
    then Rain
    Likely

  • Monday

    Monday: Rain, with thunderstorms also possible after 11am. Patchy fog before 11am. High near 63. South wind 11 to 14 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 63 °F

    Rain and
    Patchy Fog

  • Monday Night

    Monday Night: Rain. Patchy fog before 11pm, then patchy fog after 1am. Low around 40. Breezy, with a south wind 16 to 20 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 40 °F

    Rain and
    Patchy Fog

  • Tuesday

    Tuesday: Rain likely before 8am. Patchy fog before 7am. Otherwise, mostly sunny, with a high near 49. West wind around 15 mph, with gusts as high as 32 mph. Chance of precipitation is 60%.

    High: 49 °F

    Rain Likely
    and Patchy
    Fog then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 23. West wind around 11 mph, with gusts as high as 23 mph.

    Low: 23 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 39. West wind 6 to 9 mph.

    High: 39 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 28. South wind 3 to 6 mph.

    Low: 28 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 45. South wind 5 to 10 mph.

    High: 45 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 42. East wind around 8 mph.
Tonight
Rain likely, mainly after 5am. Increasing clouds, with a low around 37. Southeast wind around 8 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Rain, with thunderstorms also possible after 11am. Patchy fog before 11am. High near 63. South wind 11 to 14 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Monday Night
Rain. Patchy fog before 11pm, then patchy fog after 1am. Low around 40. Breezy, with a south wind 16 to 20 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Tuesday
Rain likely before 8am. Patchy fog before 7am. Otherwise, mostly sunny, with a high near 49. West wind around 15 mph, with gusts as high as 32 mph. Chance of precipitation is 60%.
Tuesday Night
Mostly clear, with a low around 23. West wind around 11 mph, with gusts as high as 23 mph.
Wednesday
Sunny, with a high near 39. West wind 6 to 9 mph.
Wednesday Night
Mostly cloudy, with a low around 28. South wind 3 to 6 mph.
Thursday
Partly sunny, with a high near 45. South wind 5 to 10 mph.
Thursday Night
Partly cloudy, with a low around 31. Southwest wind around 6 mph.
Friday
Mostly sunny, with a high near 51. West wind 6 to 8 mph.
Friday Night
A chance of showers. Mostly cloudy, with a low around 35. Southwest wind around 7 mph. Chance of precipitation is 30%.
Saturday
A chance of showers. Partly sunny, with a high near 50. Southwest wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
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ABOUT THIS FORECAST

 
Point Forecast:
Belmont MA
 42.4°N 71.18°W (Elev. 98 ft)
Last Update:
1:36 pm EDT Mar 15, 2026
Forecast Valid:
2pm EDT Mar 15, 2026-6pm EDT Mar 21, 2026
 
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