Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Current conditions at

ROCK CREEK (RCEC1)

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

NA

37°F

3°C

Humidity 51%
Wind Speed WNW 4 MPH
Barometer NA
Dewpoint 20°F (-7°C)
Visibility NA
Wind Chill34°F (1°C)
Last update 21 Jan 11:04 AM PST
Extended Forecast for

12 Miles ESE Chalfant CA

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 39. West wind around 5 mph.

    High: 39 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 28. North wind around 5 mph becoming west after midnight.

    Low: 28 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 37. Northwest wind around 5 mph.

    High: 37 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 25. West wind around 5 mph.

    Low: 25 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 32. West wind 5 to 10 mph.

    High: 32 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 19. Blustery, with a northwest wind 15 to 20 mph.

    Low: 19 °F

    Partly Cloudy
    then Mostly
    Clear and
    Blustery

  • Saturday

    Saturday: Sunny, with a high near 26. Blustery.

    High: 26 °F

    Sunny and
    Blustery

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 16.

    Low: 16 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 28.

    High: 28 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 39. West wind around 5 mph.
Tonight
Mostly cloudy, with a low around 28. North wind around 5 mph becoming west after midnight.
Thursday
Mostly cloudy, with a high near 37. Northwest wind around 5 mph.
Thursday Night
Mostly cloudy, with a low around 25. West wind around 5 mph.
Friday
Mostly sunny, with a high near 32. West wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 19. Blustery, with a northwest wind 15 to 20 mph.
Saturday
Sunny, with a high near 26. Blustery.
Saturday Night
Mostly clear, with a low around 16.
Sunday
Mostly sunny, with a high near 28.
Sunday Night
Partly cloudy, with a low around 20.
Monday
Mostly sunny, with a high near 31.
Monday Night
Mostly clear, with a low around 22.
Tuesday
Mostly sunny, with a high near 35.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles ESE Chalfant CA
 37.46°N 118.16°W (Elev. 9800 ft)
9:15 am PST Jan 21, 2026
12pm PST Jan 21, 2026-6pm PST Jan 27, 2026
 
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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