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

61°F

16°C

Humidity 97%
Wind Speed Calm
Barometer 29.93 in (1014.4 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 20 Aug 5:51 am EDT
Extended Forecast for

Waltham MA

  • Today

    Today: Increasing clouds, with a high near 87. West wind 3 to 5 mph.

    High: 87 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Showers likely, mainly between 10pm and 11pm. Mostly cloudy, with a low around 62. Northwest wind around 6 mph becoming calm after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 62 °F

    Showers
    Likely

  • Friday

    Friday: A slight chance of showers. Partly sunny, with a high near 79. Northeast wind 5 to 8 mph. Chance of precipitation is 20%.

    High: 79 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers, mainly after midnight. Mostly cloudy, with a low around 62. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 62 °F

    Chance
    Showers

  • Saturday

    Saturday: Showers, with thunderstorms also possible after 5pm. Some of the storms could produce heavy rainfall. High near 74. Northeast wind 6 to 8 mph. Chance of precipitation is 80%.

    High: 74 °F

    Heavy Rain

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 11pm, then a chance of showers. Low around 63. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%.

    Low: 63 °F

    Showers then
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers after 8am. Mostly cloudy, with a high near 82. South wind 3 to 6 mph. Chance of precipitation is 50%.

    High: 82 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers before 11pm. Mostly cloudy, with a low around 64. Light southwest wind. Chance of precipitation is 40%.

    Low: 64 °F

    Chance
    Showers then
    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 83. West wind 5 to 9 mph.

    High: 83 °F

    Mostly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 87. West wind 3 to 5 mph.
Tonight
Showers likely, mainly between 10pm and 11pm. Mostly cloudy, with a low around 62. Northwest wind around 6 mph becoming calm after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
A slight chance of showers. Partly sunny, with a high near 79. Northeast wind 5 to 8 mph. Chance of precipitation is 20%.
Friday Night
A chance of showers, mainly after midnight. Mostly cloudy, with a low around 62. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Showers, with thunderstorms also possible after 5pm. Some of the storms could produce heavy rainfall. High near 74. Northeast wind 6 to 8 mph. Chance of precipitation is 80%.
Saturday Night
Showers and possibly a thunderstorm before 11pm, then a chance of showers. Low around 63. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%.
Sunday
A chance of showers after 8am. Mostly cloudy, with a high near 82. South wind 3 to 6 mph. Chance of precipitation is 50%.
Sunday Night
A chance of showers before 11pm. Mostly cloudy, with a low around 64. Light southwest wind. Chance of precipitation is 40%.
Monday
Mostly sunny, with a high near 83. West wind 5 to 9 mph.
Monday Night
Mostly clear, with a low around 59. West wind around 6 mph.
Tuesday
Sunny, with a high near 82. West wind 5 to 9 mph.
Tuesday Night
Mostly clear, with a low around 59. West wind 3 to 5 mph.
Wednesday
Sunny, with a high near 84. West wind 5 to 7 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Waltham MA
 42.38°N 71.22°W (Elev. 49 ft)
Last Update:
2:31 am EDT Aug 20, 2026
Forecast Valid:
6am EDT Aug 20, 2026-6pm EDT Aug 26, 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