Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Current conditions at

Boston, Logan International Airport (KBOS)

Lat: 42.36°NLon: 71.01°WElev: 20ft.

A Few Clouds

14°F

-10°C

Humidity 51%
Wind Speed NW 7 mph
Barometer 30.25 in (1024.1 mb)
Dewpoint -1°F (-18°C)
Visibility 10.00 mi
Wind Chill4°F (-16°C)
Last update 9 Dec 6:54 am EST
Extended Forecast for

Boston, Logan International Airport MA

  • Today

    Today: Increasing clouds, with a high near 31. Light and variable wind.

    High: 31 °F

    Increasing
    Clouds

  • Tonight

    Tonight: A chance of snow showers, mainly before 2am.  Mostly cloudy, with a low around 24. South wind 13 to 17 mph.  Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    Low: 24 °F

    Chance Snow
    Showers

  • Wednesday

    Wednesday: Rain, mainly after 5pm.  High near 47. Breezy, with a south wind 14 to 23 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 47 °F

    Mostly Cloudy
    then Rain and
    Breezy

  • Wednesday Night

    Wednesday Night: Rain before 10pm, then a chance of showers between 10pm and 4am.  Low around 32. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 32 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 32 °F

    Rain then
    Chance
    Showers and
    Breezy

  • Thursday

    Thursday: A slight chance of rain and snow showers before 10am, then a slight chance of rain showers between 10am and 1pm, then a slight chance of snow showers after 1pm.  Mostly sunny, with a high near 35. Breezy, with a west wind 17 to 21 mph, with gusts as high as 34 mph.  Chance of precipitation is 20%.

    High: 35 °F

    Slight Chance
    Rain/Snow and
    Breezy

  • Thursday Night

    Thursday Night: A slight chance of snow showers before 3am.  Partly cloudy, with a low around 24. Breezy, with a west wind 17 to 22 mph decreasing to 9 to 14 mph after midnight.  Chance of precipitation is 20%.

    Low: 24 °F

    Slight Chance
    Snow Showers
    and Breezy

  • Friday

    Friday: Sunny, with a high near 34. West wind 10 to 14 mph, with gusts as high as 28 mph.

    High: 34 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 24. Southwest wind 6 to 8 mph.

    Low: 24 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 37. Southwest wind 6 to 10 mph, with gusts as high as 22 mph.

    High: 37 °F

    Partly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 31. Light and variable wind.
Tonight
A chance of snow showers, mainly before 2am. Mostly cloudy, with a low around 24. South wind 13 to 17 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Wednesday
Rain, mainly after 5pm. High near 47. Breezy, with a south wind 14 to 23 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain before 10pm, then a chance of showers between 10pm and 4am. Low around 32. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A slight chance of rain and snow showers before 10am, then a slight chance of rain showers between 10am and 1pm, then a slight chance of snow showers after 1pm. Mostly sunny, with a high near 35. Breezy, with a west wind 17 to 21 mph, with gusts as high as 34 mph. Chance of precipitation is 20%.
Thursday Night
A slight chance of snow showers before 3am. Partly cloudy, with a low around 24. Breezy, with a west wind 17 to 22 mph decreasing to 9 to 14 mph after midnight. Chance of precipitation is 20%.
Friday
Sunny, with a high near 34. West wind 10 to 14 mph, with gusts as high as 28 mph.
Friday Night
Partly cloudy, with a low around 24. Southwest wind 6 to 8 mph.
Saturday
Partly sunny, with a high near 37. Southwest wind 6 to 10 mph, with gusts as high as 22 mph.
Saturday Night
A chance of snow after 9pm, mixing with rain after midnight. Mostly cloudy, with a low around 25. West wind around 8 mph. Chance of precipitation is 40%.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 33. Northwest wind 8 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.
Sunday Night
Partly cloudy, with a low around 15. Northwest wind around 10 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 26. Northwest wind around 10 mph, with gusts as high as 22 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Boston, Logan International Airport MA
 42.38°N 71.04°W (Elev. 49 ft)
5:02 am EST Dec 9, 2025
7am EST Dec 9, 2025-6pm EST Dec 15, 2025
 
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Additional Resources

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