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.

Overcast

71°F

22°C

Humidity 87%
Wind Speed E 5 mph
Barometer 29.83 in (1011.4 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 17 Aug 9:51 pm EDT
Extended Forecast for

Waltham MA

  • Tonight

    Tonight: A slight chance of showers after 3am. Patchy fog. Otherwise, mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 20%.

    Low: 66 °F

    Patchy Fog
    then Slight
    Chance
    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: A slight chance of showers after 1pm. Patchy fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 82. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 82 °F

    Patchy Fog
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 65. Light and variable wind.

    Low: 65 °F

    Partly Cloudy
    then Patchy
    Fog

  • Wednesday

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

    High: 86 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 67. Light west wind.

    Low: 67 °F

    Mostly Clear

  • Thursday

    Thursday: A slight chance of showers after 3pm. Mostly sunny, with a high near 84. West wind 3 to 6 mph. Chance of precipitation is 20%.

    High: 84 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Thursday Night

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

    Low: 63 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 81. Light and variable wind becoming east 5 to 7 mph in the morning.

    High: 81 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 62. Light east wind.

    Low: 62 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A slight chance of showers after 3am. Patchy fog. Otherwise, mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 20%.
Tuesday
A slight chance of showers after 1pm. Patchy fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 82. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 20%.
Tuesday Night
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 65. Light and variable wind.
Wednesday
Patchy fog before 7am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 86. Calm wind becoming west 5 to 7 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 67. Light west wind.
Thursday
A slight chance of showers after 3pm. Mostly sunny, with a high near 84. West wind 3 to 6 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 63. Light and variable wind.
Friday
Mostly sunny, with a high near 81. Light and variable wind becoming east 5 to 7 mph in the morning.
Friday Night
Mostly cloudy, with a low around 62. Light east wind.
Saturday
A chance of showers after 9am. Partly sunny, with a high near 79. East wind 3 to 7 mph. Chance of precipitation is 30%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 64. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Sunday
Showers likely. Mostly cloudy, with a high near 79. East wind 5 to 8 mph becoming southeast in the afternoon. Chance of precipitation is 60%.
Sunday Night
Showers likely. Mostly cloudy, with a low around 64. Southwest wind 3 to 5 mph. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 81. West 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:
1:49 pm EDT Aug 17, 2026
Forecast Valid:
10pm EDT Aug 17, 2026-6pm EDT Aug 24, 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