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

64°F

18°C

Humidity 100%
Wind Speed Calm
Barometer 30.01 in (1017.3 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 18 Sep 5:51 am EDT
Extended Forecast for

Waltham MA

  • Today

    Today: Patchy fog before 8am. Otherwise, sunny, with a high near 79. Light northwest wind becoming north 5 to 9 mph in the morning.

    High: 79 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 50. North wind 5 to 8 mph.

    Low: 50 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly sunny, with a high near 66. North wind around 5 mph becoming east in the afternoon.

    High: 66 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 49. Southeast wind around 5 mph becoming calm in the evening.

    Low: 49 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers, mainly after noon. Mostly cloudy, with a high near 65. Calm wind becoming southeast around 6 mph in the morning. Chance of precipitation is 50%.

    High: 65 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly before 2am. Patchy fog between 10pm and 2am. Otherwise, mostly cloudy, with a low around 55. Light and variable wind. Chance of precipitation is 70%.

    Low: 55 °F

    Showers
    Likely and
    Patchy Fog

  • Monday

    Monday: A chance of showers before 9am. Partly sunny, with a high near 65. Northeast wind 7 to 9 mph. Chance of precipitation is 30%.

    High: 65 °F

    Chance
    Showers then
    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 52. Northeast wind 3 to 7 mph.

    Low: 52 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of showers. Mostly cloudy, with a high near 61. Northeast wind 9 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.

    High: 61 °F

    Chance
    Showers

Detailed Forecast

Today
Patchy fog before 8am. Otherwise, sunny, with a high near 79. Light northwest wind becoming north 5 to 9 mph in the morning.
Tonight
Increasing clouds, with a low around 50. North wind 5 to 8 mph.
Saturday
Mostly sunny, with a high near 66. North wind around 5 mph becoming east in the afternoon.
Saturday Night
Partly cloudy, with a low around 49. Southeast wind around 5 mph becoming calm in the evening.
Sunday
A chance of showers, mainly after noon. Mostly cloudy, with a high near 65. Calm wind becoming southeast around 6 mph in the morning. Chance of precipitation is 50%.
Sunday Night
Showers likely, mainly before 2am. Patchy fog between 10pm and 2am. Otherwise, mostly cloudy, with a low around 55. Light and variable wind. Chance of precipitation is 70%.
Monday
A chance of showers before 9am. Partly sunny, with a high near 65. Northeast wind 7 to 9 mph. Chance of precipitation is 30%.
Monday Night
Mostly cloudy, with a low around 52. Northeast wind 3 to 7 mph.
Tuesday
A chance of showers. Mostly cloudy, with a high near 61. Northeast wind 9 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 51. Northeast wind around 8 mph.
Wednesday
Partly sunny, with a high near 62. Northeast wind 11 to 15 mph, with gusts as high as 29 mph.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 50. Northeast wind 7 to 9 mph. Chance of precipitation is 30%.
Thursday
A chance of showers. Partly sunny, with a high near 63. Northeast wind 10 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Waltham MA
 42.38°N 71.22°W (Elev. 49 ft)
Last Update:
3:02 am EDT Sep 18, 2026
Forecast Valid:
6am EDT Sep 18, 2026-6pm EDT Sep 24, 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