Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Current conditions at

ROCK CREEK (RCEC1)

Lat: 37.55983°NLon: 118.67841°WElev: 7103.0ft.

NA

49°F

9°C

Humidity 23%
Wind Speed SW 8 MPH
Barometer NA
Dewpoint 13°F (-11°C)
Visibility NA
Wind Chill46°F (8°C)
Last update 09 Dec 06:04 PM PST
Extended Forecast for

15 Miles WSW Chalfant CA

  • Tonight

    Tonight: Mostly clear, with a low around 46. Northwest wind 5 to 10 mph.

    Low: 46 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 67. Northwest wind around 5 mph becoming calm  in the morning.

    High: 67 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 47. West wind around 5 mph.

    Low: 47 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 68. North wind around 5 mph.

    High: 68 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 45. West wind 5 to 10 mph.

    Low: 45 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 65. West wind around 5 mph becoming calm  in the morning.

    High: 65 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 46. Northwest wind 5 to 10 mph.
Wednesday
Sunny, with a high near 67. Northwest wind around 5 mph becoming calm in the morning.
Wednesday Night
Clear, with a low around 47. West wind around 5 mph.
Thursday
Sunny, with a high near 68. North wind around 5 mph.
Thursday Night
Clear, with a low around 45. West wind 5 to 10 mph.
Friday
Sunny, with a high near 65. West wind around 5 mph becoming calm in the morning.
Friday Night
Mostly clear, with a low around 45.
Saturday
Sunny, with a high near 64.
Saturday Night
Partly cloudy, with a low around 44.
Sunday
Sunny, with a high near 61.
Sunday Night
Partly cloudy, with a low around 43.
Monday
Mostly sunny, with a high near 61.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
Mostly sunny, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles WSW Chalfant CA
 37.48°N 118.62°W (Elev. 5213 ft)
3:30 pm PST Dec 9, 2025
6pm PST Dec 9, 2025-6pm PST Dec 16, 2025
 
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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