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

55°F

13°C

Humidity 25%
Wind Speed SE 7 MPH
Barometer NA
Dewpoint 20°F (-7°C)
Visibility NA
Last update 11 Apr 03:04 PM PDT
Extended Forecast for

17 Miles W Chalfant CA

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

    NOW until 11:00pm Sun

    Winter Storm Warning

  • This Afternoon

    High: 54 °F

    Mostly Sunny

  • Tonight

    Tonight: Snow likely, mainly after 2am.  Mostly cloudy, with a low around 28. South wind around 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 28 °F

    Snow Likely

  • Sunday

    Sunday: Snow showers likely, mainly before 8am. Some thunder is also possible.  Partly sunny, with a high near 43. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 43 °F

    Snow Showers
    Likely then
    Chance Snow
    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of snow showers before 11pm.  Partly cloudy, with a low around 24. West wind around 10 mph, with gusts as high as 25 mph.

    Low: 24 °F

    Slight Chance
    Snow Showers
    then Partly
    Cloudy

  • Monday

    Monday: A 30 percent chance of snow showers, mainly after 11am.  Mostly sunny, with a high near 46. West wind around 5 mph becoming north in the morning.  Little or no snow accumulation expected.

    High: 46 °F

    Chance Snow
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 27. Northwest wind 5 to 10 mph.

    Low: 27 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 53.

    High: 53 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 54. South wind around 15 mph, with gusts as high as 25 mph.
Tonight
Snow likely, mainly after 2am. Mostly cloudy, with a low around 28. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Sunday
Snow showers likely, mainly before 8am. Some thunder is also possible. Partly sunny, with a high near 43. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Sunday Night
A 20 percent chance of snow showers before 11pm. Partly cloudy, with a low around 24. West wind around 10 mph, with gusts as high as 25 mph.
Monday
A 30 percent chance of snow showers, mainly after 11am. Mostly sunny, with a high near 46. West wind around 5 mph becoming north in the morning. Little or no snow accumulation expected.
Monday Night
Mostly clear, with a low around 27. Northwest wind 5 to 10 mph.
Tuesday
Sunny, with a high near 53.
Tuesday Night
Mostly clear, with a low around 31.
Wednesday
Sunny, with a high near 57.
Wednesday Night
Partly cloudy, with a low around 35.
Thursday
Sunny, with a high near 55.
Thursday Night
Mostly clear, with a low around 28.
Friday
Sunny, with a high near 56.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles W Chalfant CA
 37.54°N 118.66°W (Elev. 7192 ft)
11:31 am PDT Apr 11, 2026
3pm PDT Apr 11, 2026-6pm PDT Apr 17, 2026
 
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Additional Resources

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