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.

Partly Cloudy

75°F

24°C

Humidity 74%
Wind Speed E 10 mph
Barometer 29.84 in (1011.7 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 18 Aug 6:51 pm EDT
Extended Forecast for

Waltham MA

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, increasing clouds, with a low around 65. East wind around 5 mph becoming calm in the evening.

    Low: 65 °F

    Partly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 86. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 86 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 66. Light southwest wind.

    Low: 66 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 84. Northwest wind 3 to 5 mph.

    High: 84 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 62. Light west wind.

    Low: 62 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 81. North wind 5 to 7 mph becoming east in the afternoon.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 61. Southeast wind around 5 mph becoming calm in the evening.

    Low: 61 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers after 11am. Partly sunny, with a high near 77. East wind 3 to 8 mph. Chance of precipitation is 30%.

    High: 77 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers. Mostly cloudy, with a low around 63. North wind 3 to 5 mph. Chance of precipitation is 50%.

    Low: 63 °F

    Chance
    Showers

Detailed Forecast

Tonight
Patchy fog after 3am. Otherwise, increasing clouds, with a low around 65. East wind around 5 mph becoming calm in the evening.
Wednesday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 86. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 66. Light southwest wind.
Thursday
Mostly sunny, with a high near 84. Northwest wind 3 to 5 mph.
Thursday Night
Partly cloudy, with a low around 62. Light west wind.
Friday
Sunny, with a high near 81. North wind 5 to 7 mph becoming east in the afternoon.
Friday Night
Partly cloudy, with a low around 61. Southeast wind around 5 mph becoming calm in the evening.
Saturday
A chance of showers after 11am. Partly sunny, with a high near 77. East wind 3 to 8 mph. Chance of precipitation is 30%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 63. North wind 3 to 5 mph. Chance of precipitation is 50%.
Sunday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 78. Northeast wind 5 to 7 mph becoming southeast in the afternoon. Chance of precipitation is 60%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 63. Southwest wind 3 to 5 mph. Chance of precipitation is 30%.
Monday
Sunny, with a high near 81. West wind 6 to 9 mph.
Monday Night
Mostly clear, with a low around 60. West wind around 6 mph.
Tuesday
Sunny, with a high near 81. West wind 6 to 8 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Waltham MA
 42.41°N 71.24°W (Elev. 230 ft)
Last Update:
1:02 pm EDT Aug 18, 2026
Forecast Valid:
7pm EDT Aug 18, 2026-6pm EDT Aug 25, 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