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.

Fog/Mist

17°C

63°F

Humidity 100%
Wind Speed Calm
Barometer 1011.0 mb (29.82 in)
Dewpoint 17°C (63°F)
Visibility 10 km
Last update 15 May 9:51 pm EDT
Extended Forecast for

Waltham MA

  • Tonight

    Tonight: Patchy fog. Otherwise, cloudy, with a low around 15. Calm wind.

    Low: 15 °C

    Patchy Fog

  • Friday

    Friday: A slight chance of showers between 2pm and 5pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 26. Southwest wind 5 to 8 km/h becoming southeast in the afternoon. Chance of precipitation is 20%.

    High: 26 °C

    Patchy Fog
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of showers before 8pm, then a slight chance of showers after midnight. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 16. South wind 5 to 10 km/h. Chance of precipitation is 20%.

    Low: 16 °C

    Mostly Cloudy
    then Slight
    Chance
    Showers and
    Patchy Fog

  • Saturday

    Saturday: A chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 25. South wind 5 to 13 km/h. Chance of precipitation is 60%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.

    High: 25 °C

    Chance
    Showers and
    Patchy Fog
    then Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 1am, then a slight chance of showers between 1am and 4am. Mostly cloudy, with a low around 16. South wind 8 to 10 km/h becoming west after midnight. Chance of precipitation is 60%.

    Low: 16 °C

    Showers
    Likely then
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, mainly after noon. Mostly sunny, with a high near 23. West wind 10 to 16 km/h, with gusts as high as 32 km/h. Chance of precipitation is 30%.

    High: 23 °C

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 12. Northwest wind around 13 km/h.

    Low: 12 °C

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 20. Northwest wind 16 to 18 km/h, with gusts as high as 37 km/h.

    High: 20 °C

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 9. Northwest wind 10 to 14 km/h.

    Low: 9 °C

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog. Otherwise, cloudy, with a low around 15. Calm wind.
Friday
A slight chance of showers between 2pm and 5pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 26. Southwest wind 5 to 8 km/h becoming southeast in the afternoon. Chance of precipitation is 20%.
Friday Night
A slight chance of showers before 8pm, then a slight chance of showers after midnight. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 16. South wind 5 to 10 km/h. Chance of precipitation is 20%.
Saturday
A chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 25. South wind 5 to 13 km/h. Chance of precipitation is 60%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.
Saturday Night
Showers likely and possibly a thunderstorm before 1am, then a slight chance of showers between 1am and 4am. Mostly cloudy, with a low around 16. South wind 8 to 10 km/h becoming west after midnight. Chance of precipitation is 60%.
Sunday
A chance of showers, mainly after noon. Mostly sunny, with a high near 23. West wind 10 to 16 km/h, with gusts as high as 32 km/h. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 12. Northwest wind around 13 km/h.
Monday
Mostly sunny, with a high near 20. Northwest wind 16 to 18 km/h, with gusts as high as 37 km/h.
Monday Night
Partly cloudy, with a low around 9. Northwest wind 10 to 14 km/h.
Tuesday
Mostly sunny, with a high near 17. North wind around 14 km/h.
Tuesday Night
Mostly cloudy, with a low around 9. North wind 5 to 10 km/h.
Wednesday
Partly sunny, with a high near 16. Northeast wind around 11 km/h.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 8. Northeast wind 5 to 8 km/h. Chance of precipitation is 40%.
Thursday
A chance of showers. Mostly cloudy, with a high near 15. East wind 11 to 14 km/h. Chance of precipitation is 50%.
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ABOUT THIS FORECAST

 
Point Forecast:
Waltham MA
 42.39°N 71.27°W (Elev. 197 m)
Last Update:
8:54 pm EDT May 15, 2025
Forecast Valid:
10pm EDT May 15, 2025-6pm EDT May 22, 2025
 
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