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

Lake Effect Snow through Saturday: A Series of Storms Impact the West

Lake effect snow showers will continue through Saturday downwind of Lakes Erie, Ontario and the eastern portion of Lake Superior. A series of storm systems will continue to impact California and the Pacific Northwest through the weekend and into next week, bringing widespread rainfall, mountain snowfall, and gusty winds. Coastal flooding is expected in northern California. Read More >

Hazardous Weather Conditions

Current conditions at

ROCK CREEK (RCEC1)

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

NA

25°F

-4°C

Humidity 99%
Wind Speed WNW 2 MPH
Barometer NA
Dewpoint 25°F (-4°C)
Visibility NA
Last update 02 Jan 06:04 AM PST
Extended Forecast for

17 Miles ESE Mammoth Lakes CA

Winter Storm Warning January 3, 12:00am until January 5, 10:00am
Click here for hazard details and duration
Winter Storm Warning

  • Today

    Today: Mostly sunny, with a high near 42. West wind around 5 mph becoming southeast in the morning.

    High: 42 °F

    Mostly Sunny

  • Tonight

    Tonight: A chance of snow before 4am, then a chance of rain and snow between 4am and 5am, then a chance of snow after 5am. Mostly cloudy, with a low around 25. East wind around 5 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Saturday

    Saturday: Rain and snow likely before 10am, then rain between 10am and 1pm, then rain and snow after 1pm. Snow level 7700 feet. High near 41. Southeast wind 5 to 10 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 41 °F

    Rain/Snow

  • Saturday Night

    Saturday Night: Rain and snow likely, becoming all snow after 7pm. Mostly cloudy, with a low around 24. Southwest wind 5 to 10 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    Low: 24 °F

    Rain/Snow
    Likely then
    Chance Snow

  • Sunday

    Sunday: Snow, mainly after 10am. High near 40. South wind around 5 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

    High: 40 °F

    Snow

  • Sunday Night

    Sunday Night: Snow likely, mainly before 10pm. Mostly cloudy, with a low around 18. Southwest wind around 5 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    Low: 18 °F

    Snow Likely
    then Chance
    Snow

  • Monday

    Monday: A 40 percent chance of snow. Partly sunny, with a high near 39. Little or no snow accumulation expected.

    High: 39 °F

    Chance Snow

  • Monday Night

    Monday Night: A chance of snow. Mostly cloudy, with a low around 17.

    Low: 17 °F

    Chance Snow

  • Tuesday

    Tuesday: A slight chance of snow. Mostly sunny, with a high near 39.

    High: 39 °F

    Slight Chance
    Snow

Detailed Forecast

Today
Mostly sunny, with a high near 42. West wind around 5 mph becoming southeast in the morning.
Tonight
A chance of snow before 4am, then a chance of rain and snow between 4am and 5am, then a chance of snow after 5am. Mostly cloudy, with a low around 25. East wind around 5 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Saturday
Rain and snow likely before 10am, then rain between 10am and 1pm, then rain and snow after 1pm. Snow level 7700 feet. High near 41. Southeast wind 5 to 10 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Saturday Night
Rain and snow likely, becoming all snow after 7pm. Mostly cloudy, with a low around 24. Southwest wind 5 to 10 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Sunday
Snow, mainly after 10am. High near 40. South wind around 5 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
Sunday Night
Snow likely, mainly before 10pm. Mostly cloudy, with a low around 18. Southwest wind around 5 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Monday
A 40 percent chance of snow. Partly sunny, with a high near 39. Little or no snow accumulation expected.
Monday Night
A chance of snow. Mostly cloudy, with a low around 17.
Tuesday
A slight chance of snow. Mostly sunny, with a high near 39.
Tuesday Night
Partly cloudy, with a low around 18.
Wednesday
A slight chance of snow. Partly sunny, with a high near 40.
Wednesday Night
A chance of snow. Partly cloudy, with a low around 13.
Thursday
A chance of snow. Mostly sunny, with a high near 34.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles ESE Mammoth Lakes CA
 37.57°N 118.67°W (Elev. 7198 ft)
Last Update:
5:31 am PST Jan 2, 2026
Forecast Valid:
6am PST Jan 2, 2026-6pm PST Jan 8, 2026
 
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