National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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

Patuxent River, Naval Air Station (KNHK)

Lat: 38.28°NLon: 76.41°WElev: 39ft.

Mostly Cloudy

28°F

-2°C

Humidity 43%
Wind Speed N 8 mph
Barometer 30.26 in (1024.8 mb)
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill20°F (-7°C)
Last update 9 Dec 2:52 am EST
Extended Forecast for

Trappe MD

  • Overnight

    Overnight: Partly cloudy, with a low around 19. North wind around 5 mph.

    Low: 19 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 38. North wind around 5 mph becoming south in the afternoon.

    High: 38 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 30. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 30 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of rain after 1pm. Increasing clouds, with a high near 48. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 48 °F

    Partly Sunny
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 34. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 34 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 19. North wind around 5 mph.
Tuesday
Sunny, with a high near 38. North wind around 5 mph becoming south in the afternoon.
Tuesday Night
Partly cloudy, with a low around 30. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
A chance of rain after 1pm. Increasing clouds, with a high near 48. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Partly cloudy, with a low around 34. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday
Mostly sunny, with a high near 42.
Thursday Night
Partly cloudy, with a low around 28.
Friday
Partly sunny, with a high near 40.
Friday Night
Mostly cloudy, with a low around 30.
Saturday
Partly sunny, with a high near 45.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 29. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 37.
Sunday Night
Mostly clear, with a low around 19.
Monday
Mostly sunny, with a high near 33.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Trappe MD
 38.65°N 76.09°W (Elev. 3 ft)
Last Update:
2:26 am EST Dec 9, 2025
Forecast Valid:
3am EST Dec 9, 2025-6pm EST Dec 15, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation