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.

Fog

63°F

17°C

Humidity 100%
Wind Speed Calm
Barometer 29.83 in (1011.3 mb)
Dewpoint 63°F (17°C)
Visibility 0.25 mi
Last update 23 Jun 11:51 pm EDT
Extended Forecast for

Belmont MA

  • Overnight

    Overnight: Patchy fog. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 60. Calm wind becoming northwest around 5 mph.

    Low: 60 °F

    Patchy Fog

  • Wednesday

    Wednesday: Sunny, with a high near 83. Northwest wind 6 to 9 mph.

    High: 83 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 61. West wind 3 to 5 mph.

    Low: 61 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 82. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 82 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Showers likely, mainly after 3am. Mostly cloudy, with a low around 65. South wind around 6 mph. Chance of precipitation is 60%.

    Low: 65 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Friday

    Friday: Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 81. Southwest wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.

    High: 81 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers after 2am. Mostly cloudy, with a low around 64. Southwest wind 3 to 5 mph. Chance of precipitation is 30%.

    Low: 64 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers. Partly sunny, with a high near 80. Calm wind becoming east 5 to 7 mph in the afternoon. Chance of precipitation is 30%.

    High: 80 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 63. Light and variable wind.

    Low: 63 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy fog. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 60. Calm wind becoming northwest around 5 mph.
Wednesday
Sunny, with a high near 83. Northwest wind 6 to 9 mph.
Wednesday Night
Mostly clear, with a low around 61. West wind 3 to 5 mph.
Thursday
Mostly sunny, with a high near 82. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Thursday Night
Showers likely, mainly after 3am. Mostly cloudy, with a low around 65. South wind around 6 mph. Chance of precipitation is 60%.
Friday
Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 81. Southwest wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.
Friday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers after 2am. Mostly cloudy, with a low around 64. Southwest wind 3 to 5 mph. Chance of precipitation is 30%.
Saturday
A chance of showers. Partly sunny, with a high near 80. Calm wind becoming east 5 to 7 mph in the afternoon. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 63. Light and variable wind.
Sunday
Mostly sunny, with a high near 85. Light and variable wind becoming northeast 5 to 7 mph in the morning.
Sunday Night
Partly cloudy, with a low around 64. Calm wind.
Monday
Mostly sunny, with a high near 87. Light and variable wind becoming east 5 to 7 mph in the morning.
Monday Night
Partly cloudy, with a low around 66. Light south wind.
Tuesday
Mostly sunny, with a high near 87. Calm wind becoming west 5 to 7 mph 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:
7:35 pm EDT Jun 23, 2026
Forecast Valid:
12am EDT Jun 24, 2026-6pm EDT Jun 30, 2026
 
Forecast Discussion
 
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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