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

45°F

7°C

Humidity 93%
Wind Speed SE 5 mph
Barometer 29.92 in (1014.6 mb)
Dewpoint 43°F (6°C)
Visibility 5.00 mi
Wind Chill42°F (6°C)
Last update 19 Apr 1:51 am EDT
Extended Forecast for

Waltham MA

  • Overnight

    Overnight: Patchy dense fog. Otherwise, cloudy, with a low around 46. Light south wind.

    Low: 46 °F

    Patchy Dense
    Fog

  • Sunday

    Sunday: Showers and possibly a thunderstorm. Patchy dense fog between 1pm and 2pm. High near 55. South wind 5 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 55 °F

    Showers and
    Patchy Dense
    Fog

  • Sunday Night

    Sunday Night: A chance of showers, mainly before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 35. West wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 35 °F

    Chance
    Showers then
    Mostly Clear

  • Monday

    Monday: A chance of rain, mainly after 4pm. Increasing clouds, with a high near 50. West wind 6 to 8 mph. Chance of precipitation is 30%.

    High: 50 °F

    Mostly Sunny
    then Chance
    Rain

  • Monday Night

    Monday Night: Partly cloudy, with a low around 31. North wind around 7 mph.

    Low: 31 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 50. North wind around 6 mph becoming southeast in the afternoon.

    High: 50 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 5am. Partly cloudy, with a low around 36. South wind around 6 mph. Chance of precipitation is 30%.

    Low: 36 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 54. South wind 6 to 8 mph.

    High: 54 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 40. South wind around 6 mph becoming west after midnight.

    Low: 40 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy dense fog. Otherwise, cloudy, with a low around 46. Light south wind.
Sunday
Showers and possibly a thunderstorm. Patchy dense fog between 1pm and 2pm. High near 55. South wind 5 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
A chance of showers, mainly before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 35. West wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday
A chance of rain, mainly after 4pm. Increasing clouds, with a high near 50. West wind 6 to 8 mph. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 31. North wind around 7 mph.
Tuesday
Sunny, with a high near 50. North wind around 6 mph becoming southeast in the afternoon.
Tuesday Night
A chance of showers after 5am. Partly cloudy, with a low around 36. South wind around 6 mph. Chance of precipitation is 30%.
Wednesday
Mostly cloudy, with a high near 54. South wind 6 to 8 mph.
Wednesday Night
Partly cloudy, with a low around 40. South wind around 6 mph becoming west after midnight.
Thursday
Partly sunny, with a high near 63. Northwest wind 6 to 8 mph.
Thursday Night
Partly cloudy, with a low around 41. North wind around 6 mph.
Friday
Partly sunny, with a high near 60. North wind 5 to 8 mph.
Friday Night
Partly cloudy, with a low around 42. East wind around 6 mph becoming light and variable after midnight.
Saturday
Partly sunny, with a high near 60. North wind 5 to 8 mph becoming east in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Waltham MA
 42.41°N 71.24°W (Elev. 230 ft)
Last Update:
1:58 am EDT Apr 19, 2026
Forecast Valid:
2am EDT Apr 19, 2026-6pm EDT Apr 25, 2026
 
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Additional Resources

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Chance of Precipitation