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

29°F

-2°C

Humidity 61%
Wind Speed W 4 MPH
Barometer NA
Dewpoint 17°F (-8°C)
Visibility NA
Wind Chill25°F (-4°C)
Last update 20 Jan 07:04 PM PST
Extended Forecast for

16 Miles ESE Mammoth Lakes CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 22. Calm wind.

    Low: 22 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 47. West wind around 5 mph becoming southeast in the afternoon.

    High: 47 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A slight chance of rain between 4am and 5am.  Snow level 7400 feet. Mostly cloudy, with a low around 22. Calm wind.  Chance of precipitation is 10%.

    Low: 22 °F

    Cloudy then
    Slight Chance
    Rain

  • Thursday

    Thursday: A slight chance of rain and snow before 8am, then a slight chance of snow between 8am and 10am, then a slight chance of rain and snow after 10am.  Snow level 7400 feet. Mostly cloudy, with a high near 44. Calm wind becoming northeast around 5 mph in the afternoon.  Chance of precipitation is 20%.

    High: 44 °F

    Slight Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A slight chance of rain and snow before 10pm.  Snow level 7200 feet. Mostly cloudy, with a low around 19. Calm wind.  Chance of precipitation is 20%.

    Low: 19 °F

    Slight Chance
    Rain/Snow
    then Partly
    Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 42. Calm wind becoming north around 5 mph in the afternoon.

    High: 42 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 17.

    Low: 17 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 36.

    High: 36 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 12.

    Low: 12 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 22. Calm wind.
Wednesday
Mostly cloudy, with a high near 47. West wind around 5 mph becoming southeast in the afternoon.
Wednesday Night
A slight chance of rain between 4am and 5am. Snow level 7400 feet. Mostly cloudy, with a low around 22. Calm wind. Chance of precipitation is 10%.
Thursday
A slight chance of rain and snow before 8am, then a slight chance of snow between 8am and 10am, then a slight chance of rain and snow after 10am. Snow level 7400 feet. Mostly cloudy, with a high near 44. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 20%.
Thursday Night
A slight chance of rain and snow before 10pm. Snow level 7200 feet. Mostly cloudy, with a low around 19. Calm wind. Chance of precipitation is 20%.
Friday
Mostly sunny, with a high near 42. Calm wind becoming north around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 17.
Saturday
Sunny, with a high near 36.
Saturday Night
Mostly clear, with a low around 12.
Sunday
Mostly sunny, with a high near 40.
Sunday Night
Partly cloudy, with a low around 18.
Monday
Partly sunny, with a high near 43.
Monday Night
Partly cloudy, with a low around 21.
Tuesday
Mostly sunny, with a high near 46.
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles ESE Mammoth Lakes CA
 37.56°N 118.69°W (Elev. 7001 ft)
1:15 pm PST Jan 20, 2026
7pm PST Jan 20, 2026-6pm PST Jan 27, 2026
 
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Additional Resources

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