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.

Overcast

71°F

22°C

Humidity 81%
Wind Speed S 9 mph
Barometer 29.88 in (1012.8 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 17 Aug 11:51 am EDT
Extended Forecast for

Belmont MASimilar City Names

  • This Afternoon

    This Afternoon: A chance of showers. Mostly cloudy, with a high near 76. South wind around 8 mph becoming east. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 76 °F

    Chance
    Showers

  • Tonight

    Tonight: A slight chance of showers before 2am. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 67. Light north wind. Chance of precipitation is 20%.

    Low: 67 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: A slight chance of showers after 3pm. Patchy fog before 10am. Otherwise, partly sunny, with a high near 81. North wind around 6 mph becoming northeast in the afternoon. Chance of precipitation is 20%.

    High: 81 °F

    Patchy Fog
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 65. Light and variable wind.

    Low: 65 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 87. Southwest wind 3 to 7 mph.

    High: 87 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 67. Southwest wind around 5 mph.

    Low: 67 °F

    Mostly Clear

  • Thursday

    Thursday: A chance of showers before 2pm, then a chance of showers after 3pm. Mostly sunny, with a high near 85. Northwest wind around 6 mph becoming southwest in the afternoon. Chance of precipitation is 30%.

    High: 85 °F

    Mostly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers before 8pm. Partly cloudy, with a low around 63. Light and variable wind. Chance of precipitation is 30%.

    Low: 63 °F

    Chance
    Showers then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 82. North wind 5 to 8 mph becoming east in the afternoon.

    High: 82 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A chance of showers. Mostly cloudy, with a high near 76. South wind around 8 mph becoming east. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
A slight chance of showers before 2am. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 67. Light north wind. Chance of precipitation is 20%.
Tuesday
A slight chance of showers after 3pm. Patchy fog before 10am. Otherwise, partly sunny, with a high near 81. North wind around 6 mph becoming northeast in the afternoon. Chance of precipitation is 20%.
Tuesday Night
Partly cloudy, with a low around 65. Light and variable wind.
Wednesday
Sunny, with a high near 87. Southwest wind 3 to 7 mph.
Wednesday Night
Mostly clear, with a low around 67. Southwest wind around 5 mph.
Thursday
A chance of showers before 2pm, then a chance of showers after 3pm. Mostly sunny, with a high near 85. Northwest wind around 6 mph becoming southwest in the afternoon. Chance of precipitation is 30%.
Thursday Night
A chance of showers before 8pm. Partly cloudy, with a low around 63. Light and variable wind. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 82. North wind 5 to 8 mph becoming east in the afternoon.
Friday Night
Partly cloudy, with a low around 62. East wind around 5 mph becoming calm in the evening.
Saturday
A chance of showers. Partly sunny, with a high near 79. East wind 3 to 8 mph. Chance of precipitation is 30%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 63. Northeast wind 3 to 6 mph. Chance of precipitation is 30%.
Sunday
A chance of showers. Mostly cloudy, with a high near 79. Northeast wind 5 to 8 mph. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Belmont MASimilar City Names
 42.4°N 71.18°W (Elev. 98 ft)
Last Update:
4:34 am EDT Aug 17, 2026
Forecast Valid:
12pm EDT Aug 17, 2026-6pm EDT Aug 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation