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

Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. Read More >

Hazardous Weather Conditions

Current conditions at

ROCK CREEK (RCEC1)

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

NA

32°F

0°C

Humidity 100%
Wind Speed ESE 2 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 01 Jan 08:04 AM PST
Extended Forecast for

15 Miles WSW Chalfant CA

Winter Storm Watch January 2, 04:00pm until January 4, 10:00am
Winter Weather Advisory until January 1, 12:00pm
Click here for hazard details and duration
Winter Storm Watch
Winter Weather Advisory
  •  
    Winter Weather Advisory until January 1, 12:00pm

    NOW until 12:00pm Thu

    Winter Weather Advisory

  • New Year's Day

    High: 47 °F

    Rain

  • Tonight

    Tonight: Partly cloudy, with a low around 36. Northwest wind around 5 mph.

    Low: 36 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 50. West wind around 5 mph becoming southeast in the morning.

    High: 50 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of rain, mainly after 4am. Snow level 7000 feet. Mostly cloudy, with a low around 40. South wind 5 to 10 mph.

    Low: 40 °F

    Chance Rain

  • Saturday

    Saturday: Rain, mainly after 10am. Snow level 7600 feet. High near 51. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    High: 51 °F

    Rain

  • Saturday Night

    Saturday Night: Rain likely, mainly before 4am. Snow level 7000 feet. Mostly cloudy, with a low around 38. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.

    Low: 38 °F

    Rain Likely

  • Sunday

    Sunday: Rain likely, mainly after 10am. Snow level 6900 feet. Mostly cloudy, with a high near 48. Chance of precipitation is 70%.

    High: 48 °F

    Rain Likely

  • Sunday Night

    Sunday Night: Rain before 1am, then rain and snow. Snow level 6600 feet. Mostly cloudy, with a low around 37.

    Low: 37 °F

    Rain then
    Rain/Snow

Detailed Forecast

New Year's Day
Rain, mainly before 1pm. Snow level 7300 feet. High near 47. North wind around 5 mph becoming east in the afternoon. Chance of precipitation is 90%.
Tonight
Partly cloudy, with a low around 36. Northwest wind around 5 mph.
Friday
Mostly sunny, with a high near 50. West wind around 5 mph becoming southeast in the morning.
Friday Night
A 30 percent chance of rain, mainly after 4am. Snow level 7000 feet. Mostly cloudy, with a low around 40. South wind 5 to 10 mph.
Saturday
Rain, mainly after 10am. Snow level 7600 feet. High near 51. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Saturday Night
Rain likely, mainly before 4am. Snow level 7000 feet. Mostly cloudy, with a low around 38. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Sunday
Rain likely, mainly after 10am. Snow level 6900 feet. Mostly cloudy, with a high near 48. Chance of precipitation is 70%.
Sunday Night
Rain before 1am, then rain and snow. Snow level 6600 feet. Mostly cloudy, with a low around 37.
Monday
Rain and snow likely, becoming all rain after 1pm. Snow level 6000 feet. Mostly cloudy, with a high near 46.
Monday Night
A chance of rain before 7pm, then a chance of rain and snow. Snow level 5800 feet. Mostly cloudy, with a low around 31.
Tuesday
A chance of rain and snow. Snow level rising to 5700 feet in the afternoon. Partly sunny, with a high near 44.
Tuesday Night
A slight chance of rain and snow. Snow level 5700 feet. Mostly cloudy, with a low around 31.
Wednesday
A slight chance of rain and snow. Snow level 5200 feet rising to 6000 feet in the afternoon. Mostly sunny, with a high near 47.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles WSW Chalfant CA
 37.48°N 118.62°W (Elev. 5213 ft)
Last Update:
8:16 am PST Jan 1, 2026
Forecast Valid:
9am PST Jan 1, 2026-6pm PST Jan 7, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation