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 >

Current conditions at

BLACK ROCK (OKFO3)

Lat: 43.52831°NLon: 121.81601°WElev: 4891.0ft.

NA

36°F

2°C

Humidity 98%
Wind Speed NNW 1 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Last update 01 Jan 05:15 AM PST
Extended Forecast for

2 Miles NW Cascade Summit OR

  • New Year's Day

    New Year's Day: Rain. High near 42. Southeast wind 6 to 8 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 42 °F

    Rain

  • Tonight

    Tonight: Rain. Snow level 8000 feet lowering to 7500 feet after midnight . Steady temperature around 40. South southwest wind around 8 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 40 °F

    Rain

  • Friday

    Friday: A 50 percent chance of rain. Snow level 7000 feet. Mostly cloudy, with a high near 42. Southeast wind 6 to 9 mph.

    High: 42 °F

    Chance Rain

  • Friday Night

    Friday Night: Rain likely before 1am, then rain likely, possibly mixed with snow. Snow level 6000 feet. Mostly cloudy, with a low around 34. Southeast wind 11 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 34 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Saturday

    Saturday: Rain, possibly mixed with snow before 10am, then rain between 10am and 4pm, then rain, possibly mixed with snow after 4pm. Snow level 5600 feet. High near 40. South southeast wind around 11 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 40 °F

    Rain/Snow

  • Saturday Night

    Saturday Night: Rain, possibly mixed with snow. Snow level 5200 feet. Low around 33. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 33 °F

    Rain/Snow

  • Sunday

    Sunday: Snow, possibly mixed with rain. Snow level 5100 feet. High near 37. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 37 °F

    Rain/Snow

  • Sunday Night

    Sunday Night: Rain and snow likely, becoming all snow after 7pm. Mostly cloudy, with a low around 30.

    Low: 30 °F

    Rain/Snow
    Likely then
    Snow Likely

  • Monday

    Monday: Snow likely, mainly before 4pm. Mostly cloudy, with a high near 36.

    High: 36 °F

    Snow Likely

Detailed Forecast

New Year's Day
Rain. High near 42. Southeast wind 6 to 8 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Rain. Snow level 8000 feet lowering to 7500 feet after midnight . Steady temperature around 40. South southwest wind around 8 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday
A 50 percent chance of rain. Snow level 7000 feet. Mostly cloudy, with a high near 42. Southeast wind 6 to 9 mph.
Friday Night
Rain likely before 1am, then rain likely, possibly mixed with snow. Snow level 6000 feet. Mostly cloudy, with a low around 34. Southeast wind 11 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Saturday
Rain, possibly mixed with snow before 10am, then rain between 10am and 4pm, then rain, possibly mixed with snow after 4pm. Snow level 5600 feet. High near 40. South southeast wind around 11 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Saturday Night
Rain, possibly mixed with snow. Snow level 5200 feet. Low around 33. Chance of precipitation is 80%. Little or no snow accumulation expected.
Sunday
Snow, possibly mixed with rain. Snow level 5100 feet. High near 37. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Sunday Night
Rain and snow likely, becoming all snow after 7pm. Mostly cloudy, with a low around 30.
Monday
Snow likely, mainly before 4pm. Mostly cloudy, with a high near 36.
Monday Night
A chance of snow, mainly before 10pm. Mostly cloudy, with a low around 26.
Tuesday
A chance of snow. Partly sunny, with a high near 37.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 27.
Wednesday
Snow likely. Mostly cloudy, with a high near 36.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Cascade Summit OR
 43.58°N 122.05°W (Elev. 5030 ft)
Last Update:
4:41 am PST Jan 1, 2026
Forecast Valid:
6am PST Jan 1, 2026-6pm PST Jan 7, 2026
 
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Additional Resources

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Chance of Precipitation