Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Current conditions at

ROCK CREEK (RCEC1)

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

NA

40°F

4°C

Humidity 58%
Wind Speed NW 1 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility NA
Last update 10 Apr 11:04 PM PDT
Extended Forecast for

9 Miles ESE Chalfant CA

Winter Storm Warning April 11, 02:00pm until April 12, 11:00pm
Click here for hazard details and duration
Winter Storm Warning
  • Tonight

    Tonight: A 20 percent chance of snow showers before 2am.  Mostly clear, with a low around 23. Southwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 23 °F

    Slight Chance
    Snow Showers

  • Saturday

    Saturday: Sunny, with a high near 36. Breezy, with a southwest wind 15 to 20 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 40 mph.

    High: 36 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: A 40 percent chance of snow showers after 2am.  Increasing clouds, with a low around 19. Windy, with a southwest wind 25 to 30 mph, with gusts as high as 45 mph.  New snow accumulation of less than one inch possible.

    Low: 19 °F

    Windy. Partly
    Cloudy then
    Chance Snow
    Showers

  • Sunday

    Sunday: Snow showers, mainly before 11am.  High near 27. Windy, with a southwest wind 25 to 30 mph, with gusts as high as 45 mph.  Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    High: 27 °F

    Snow Showers
    and Windy
    then Chance
    Snow Showers
    and Breezy

  • Sunday Night

    Sunday Night: A 20 percent chance of snow showers before 11pm.  Partly cloudy, with a low around 17. Breezy, with a west wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 35 mph.

    Low: 17 °F

    Slight Chance
    Snow Showers
    and Breezy
    then Partly
    Cloudy

  • Monday

    Monday: A 30 percent chance of snow showers, mainly after 11am.  Mostly sunny, with a high near 29. West wind 10 to 15 mph, with gusts as high as 25 mph.  Little or no snow accumulation expected.

    High: 29 °F

    Chance Snow
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 21.

    Low: 21 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 37.

    High: 37 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

Detailed Forecast

Tonight
A 20 percent chance of snow showers before 2am. Mostly clear, with a low around 23. Southwest wind around 15 mph, with gusts as high as 25 mph.
Saturday
Sunny, with a high near 36. Breezy, with a southwest wind 15 to 20 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 40 mph.
Saturday Night
A 40 percent chance of snow showers after 2am. Increasing clouds, with a low around 19. Windy, with a southwest wind 25 to 30 mph, with gusts as high as 45 mph. New snow accumulation of less than one inch possible.
Sunday
Snow showers, mainly before 11am. High near 27. Windy, with a southwest wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Sunday Night
A 20 percent chance of snow showers before 11pm. Partly cloudy, with a low around 17. Breezy, with a west wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 35 mph.
Monday
A 30 percent chance of snow showers, mainly after 11am. Mostly sunny, with a high near 29. West wind 10 to 15 mph, with gusts as high as 25 mph. Little or no snow accumulation expected.
Monday Night
Mostly clear, with a low around 21.
Tuesday
Sunny, with a high near 37.
Tuesday Night
Mostly clear, with a low around 25.
Wednesday
Sunny, with a high near 42.
Wednesday Night
Partly cloudy, with a low around 26.
Thursday
Mostly sunny, with a high near 38.
Thursday Night
Mostly clear, with a low around 23. Blustery.
Friday
Sunny, with a high near 41.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles ESE Chalfant CA
 37.5°N 118.19°W (Elev. 10932 ft)
11:30 pm PDT Apr 10, 2026
11pm PDT Apr 10, 2026-6pm PDT Apr 17, 2026
 
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Additional Resources

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