Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Current conditions at

Laurence G Hanscom Field Airport (KBED)

Lat: 42.47°NLon: 71.29°WElev: 132ft.

Overcast

37°F

3°C

Humidity 52%
Wind Speed S 5 mph
Barometer 30.01 in (1017.9 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 7 Dec 3:51 pm EST
Extended Forecast for

Acton MA

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 17. Calm wind becoming northwest 5 to 7 mph after midnight.

    Low: 17 °F

    Decreasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 25. Northwest wind 6 to 9 mph, with gusts as high as 20 mph.

    High: 25 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 6. Light west wind.

    Low: 6 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 32. Calm wind becoming south around 6 mph in the afternoon.

    High: 32 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A chance of snow before 4am, then a slight chance of snow after 5am.  Mostly cloudy, with a low around 23. Southwest wind around 6 mph.  Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 23 °F

    Chance Snow

  • Wednesday

    Wednesday: A chance of snow before 9am, then rain likely.  Mostly cloudy, with a high near 42. South wind around 7 mph.  Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 42 °F

    Chance
    Rain/Snow
    then Rain
    Likely

  • Wednesday Night

    Wednesday Night: Rain likely, mainly before 8pm.  Mostly cloudy, with a low around 31. Southwest wind around 7 mph.  Chance of precipitation is 60%.

    Low: 31 °F

    Rain Likely

  • Thursday

    Thursday: Mostly sunny, with a high near 38. West wind 6 to 8 mph.

    High: 38 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 22. West wind 3 to 5 mph.

    Low: 22 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 17. Calm wind becoming northwest 5 to 7 mph after midnight.
Monday
Sunny, with a high near 25. Northwest wind 6 to 9 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 6. Light west wind.
Tuesday
Increasing clouds, with a high near 32. Calm wind becoming south around 6 mph in the afternoon.
Tuesday Night
A chance of snow before 4am, then a slight chance of snow after 5am. Mostly cloudy, with a low around 23. Southwest wind around 6 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Wednesday
A chance of snow before 9am, then rain likely. Mostly cloudy, with a high near 42. South wind around 7 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Wednesday Night
Rain likely, mainly before 8pm. Mostly cloudy, with a low around 31. Southwest wind around 7 mph. Chance of precipitation is 60%.
Thursday
Mostly sunny, with a high near 38. West wind 6 to 8 mph.
Thursday Night
Mostly cloudy, with a low around 22. West wind 3 to 5 mph.
Friday
A chance of snow after 2pm. Partly sunny, with a high near 33. West wind around 6 mph. Chance of precipitation is 30%.
Friday Night
A chance of snow. Mostly cloudy, with a low around 18. West wind 3 to 6 mph. Chance of precipitation is 30%.
Saturday
A chance of snow. Mostly sunny, with a high near 30. Northwest wind 6 to 8 mph. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 15. West wind around 7 mph.
Sunday
Mostly sunny, with a high near 28. West wind 7 to 10 mph, with gusts as high as 22 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Acton MA
 42.48°N 71.49°W (Elev. 230 ft)
1:37 pm EST Dec 7, 2025
4pm EST Dec 7, 2025-6pm EST Dec 14, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database