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.

A Few Clouds

69°F

21°C

Humidity 87%
Wind Speed SE 6 mph
Barometer 29.67 in (1005.6 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 29 Jul 3:51 am EDT
Extended Forecast for

Waltham MA

  • Overnight

    Overnight: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Southeast wind around 6 mph. Chance of precipitation is 20%.

    Low: 65 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. Some of the storms could produce heavy rainfall. High near 76. Southeast wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 76 °F

    Chance
    Showers then
    Heavy Rain

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 61. Northeast wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 61 °F

    Showers

  • Thursday

    Thursday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 11am. High near 72. North wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 72 °F

    Showers

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely, mainly before midnight. Mostly cloudy, with a low around 60. North wind 5 to 7 mph. Chance of precipitation is 60%.

    Low: 60 °F

    Showers
    Likely then
    Slight Chance
    T-storms

  • Friday

    Friday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 79. North wind around 7 mph. Chance of precipitation is 20%.

    High: 79 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 62. Calm wind.

    Low: 62 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 83. Calm wind becoming east around 6 mph in the afternoon.

    High: 83 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 65. Southwest wind 3 to 5 mph.

    Low: 65 °F

    Partly Cloudy

Detailed Forecast

Overnight
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Southeast wind around 6 mph. Chance of precipitation is 20%.
Wednesday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. Some of the storms could produce heavy rainfall. High near 76. Southeast wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
Showers and possibly a thunderstorm. Low around 61. Northeast wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 11am. High near 72. North wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Showers and thunderstorms likely, mainly before midnight. Mostly cloudy, with a low around 60. North wind 5 to 7 mph. Chance of precipitation is 60%.
Friday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 79. North wind around 7 mph. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 62. Calm wind.
Saturday
Sunny, with a high near 83. Calm wind becoming east around 6 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 65. Southwest wind 3 to 5 mph.
Sunday
Partly sunny, with a high near 84. South wind 3 to 8 mph.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 66. South wind 3 to 6 mph. Chance of precipitation is 30%.
Monday
A chance of showers. Partly sunny, with a high near 82. Southwest wind 5 to 7 mph. Chance of precipitation is 40%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 65. Light northwest wind. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 84. Northeast wind 5 to 7 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Waltham MA
 42.38°N 71.24°W (Elev. 98 ft)
Last Update:
3:27 pm EDT Jul 28, 2026
Forecast Valid:
4am EDT Jul 29, 2026-6pm EDT Aug 4, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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