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

52°F

11°C

Humidity 75%
Wind Speed NW 3 mph
Barometer 30.26 in (1025.9 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 21 May 9:51 pm EDT
Extended Forecast for

Waltham MA

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 43. Calm wind becoming north around 5 mph after midnight.

    Low: 43 °F

    Decreasing
    Clouds

  • Friday

    Friday: Increasing clouds, with a high near 65. Northeast wind 6 to 8 mph becoming east in the afternoon.

    High: 65 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Increasing clouds, with a low around 43. Southeast wind around 5 mph becoming calm in the evening.

    Low: 43 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly cloudy, with a high near 64. Calm wind becoming east 5 to 8 mph in the morning.

    High: 64 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Showers likely, mainly after 4am. Cloudy, with a low around 47. East wind 3 to 5 mph. Chance of precipitation is 60%.

    Low: 47 °F

    Chance
    Showers then
    Showers
    Likely

  • Sunday

    Sunday: Showers. High near 57. East wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.

    High: 57 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly before 2am. Cloudy, with a low around 49. East wind 6 to 8 mph. Chance of precipitation is 70%.

    Low: 49 °F

    Showers
    Likely

  • Memorial Day

    Memorial Day: A chance of showers before 2pm. Mostly cloudy, with a high near 68. North wind 5 to 7 mph. Chance of precipitation is 30%.

    High: 68 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 52. Light and variable wind.

    Low: 52 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 43. Calm wind becoming north around 5 mph after midnight.
Friday
Increasing clouds, with a high near 65. Northeast wind 6 to 8 mph becoming east in the afternoon.
Friday Night
Increasing clouds, with a low around 43. Southeast wind around 5 mph becoming calm in the evening.
Saturday
Mostly cloudy, with a high near 64. Calm wind becoming east 5 to 8 mph in the morning.
Saturday Night
Showers likely, mainly after 4am. Cloudy, with a low around 47. East wind 3 to 5 mph. Chance of precipitation is 60%.
Sunday
Showers. High near 57. East wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Sunday Night
Showers likely, mainly before 2am. Cloudy, with a low around 49. East wind 6 to 8 mph. Chance of precipitation is 70%.
Memorial Day
A chance of showers before 2pm. Mostly cloudy, with a high near 68. North wind 5 to 7 mph. Chance of precipitation is 30%.
Monday Night
Mostly cloudy, with a low around 52. Light and variable wind.
Tuesday
Mostly sunny, with a high near 76. Calm wind becoming west around 6 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 56. Southwest wind around 5 mph.
Wednesday
A chance of showers. Mostly sunny, with a high near 79. Northwest wind 5 to 9 mph. Chance of precipitation is 30%.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 54. North wind 3 to 5 mph. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 73. North wind 5 to 9 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Waltham MA
 42.38°N 71.24°W (Elev. 98 ft)
Last Update:
8:46 pm EDT May 21, 2026
Forecast Valid:
10pm EDT May 21, 2026-6pm EDT May 28, 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