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

39°F

4°C

Humidity 47%
Wind Speed NW 1 MPH
Barometer NA
Dewpoint 20°F (-7°C)
Visibility NA
Last update 21 Jan 12:04 PM PST
Extended Forecast for

16 Miles SE Mammoth Lakes CA

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 48. West wind 5 to 10 mph.

    High: 48 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 20. Southwest wind around 5 mph.

    Low: 20 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow after 10am.  Mostly cloudy, with a high near 44. Northwest wind 5 to 10 mph.

    High: 44 °F

    Slight Chance
    Snow

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 18. West wind 5 to 10 mph.

    Low: 18 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 39. Northwest wind 5 to 10 mph.

    High: 39 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 12. Northwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 12 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 33. Breezy.

    High: 33 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 8.

    Low: 8 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 48. West wind 5 to 10 mph.
Tonight
Mostly cloudy, with a low around 20. Southwest wind around 5 mph.
Thursday
A 20 percent chance of snow after 10am. Mostly cloudy, with a high near 44. Northwest wind 5 to 10 mph.
Thursday Night
Mostly cloudy, with a low around 18. West wind 5 to 10 mph.
Friday
Mostly sunny, with a high near 39. Northwest wind 5 to 10 mph.
Friday Night
Partly cloudy, with a low around 12. Northwest wind around 15 mph, with gusts as high as 25 mph.
Saturday
Sunny, with a high near 33. Breezy.
Saturday Night
Mostly clear, with a low around 8.
Sunday
Mostly sunny, with a high near 38.
Sunday Night
Mostly cloudy, with a low around 14.
Monday
Mostly sunny, with a high near 40.
Monday Night
Partly cloudy, with a low around 16.
Tuesday
Mostly sunny, with a high near 44.
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles SE Mammoth Lakes CA
 37.49°N 118.76°W (Elev. 10397 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

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Hourly Weather Forecast

National Digital Forecast Database