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

50°F

10°C

Humidity 50%
Wind Speed WNW 4 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Wind Chill49°F (9°C)
Last update 10 Apr 09:04 AM PDT
Extended Forecast for

12 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
  • Today

    Today: A 10 percent chance of snow showers after 5pm.  Mostly sunny, with a high near 46. Windy, with a south wind 20 to 25 mph increasing to 30 to 35 mph in the afternoon. Winds could gust as high as 45 mph.

    High: 46 °F

    Windy. Sunny
    then Slight
    Chance Snow
    Showers

  • Tonight

    Tonight: A slight chance of snow showers before 8pm, then a slight chance of snow showers after 2am.  Partly cloudy, with a low around 26. Windy, with a south wind 20 to 30 mph becoming west 10 to 20 mph in the evening. Winds could gust as high as 45 mph.  Chance of precipitation is 20%.

    Low: 26 °F

    Slight Chance
    Snow Showers
    and Windy

  • Saturday

    Saturday: A 20 percent chance of snow showers before 11am.  Mostly sunny, with a high near 42. Windy, with a west wind 10 to 20 mph becoming south 20 to 30 mph in the morning. Winds could gust as high as 45 mph.

    High: 42 °F

    Slight Chance
    Snow Showers
    and Windy

  • Saturday Night

    Saturday Night: A 40 percent chance of snow showers after 11pm.  Mostly cloudy, with a low around 23. Windy, with a south wind 30 to 35 mph decreasing to 20 to 25 mph in the evening. Winds could gust as high as 45 mph.  New snow accumulation of 1 to 3 inches possible.

    Low: 23 °F

    Chance Snow
    Showers and
    Windy

  • Sunday

    Sunday: Snow showers, mainly before 11am.  High near 33. Breezy, with a southwest wind 20 to 25 mph, with gusts as high as 40 mph.  Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

    High: 33 °F

    Breezy. Snow
    Showers then
    Chance Snow
    Showers

  • Sunday Night

    Sunday Night: A 30 percent chance of snow showers, mainly before 11pm.  Partly cloudy, with a low around 21. Breezy, with a west wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph.  New snow accumulation of less than one inch possible.

    Low: 21 °F

    Chance Snow
    Showers and
    Breezy

  • Monday

    Monday: A 20 percent chance of snow showers.  Mostly sunny, with a high near 36.

    High: 36 °F

    Slight Chance
    Snow Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 24.

    Low: 24 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 43.

    High: 43 °F

    Sunny

Detailed Forecast

Today
A 10 percent chance of snow showers after 5pm. Mostly sunny, with a high near 46. Windy, with a south wind 20 to 25 mph increasing to 30 to 35 mph in the afternoon. Winds could gust as high as 45 mph.
Tonight
A slight chance of snow showers before 8pm, then a slight chance of snow showers after 2am. Partly cloudy, with a low around 26. Windy, with a south wind 20 to 30 mph becoming west 10 to 20 mph in the evening. Winds could gust as high as 45 mph. Chance of precipitation is 20%.
Saturday
A 20 percent chance of snow showers before 11am. Mostly sunny, with a high near 42. Windy, with a west wind 10 to 20 mph becoming south 20 to 30 mph in the morning. Winds could gust as high as 45 mph.
Saturday Night
A 40 percent chance of snow showers after 11pm. Mostly cloudy, with a low around 23. Windy, with a south wind 30 to 35 mph decreasing to 20 to 25 mph in the evening. Winds could gust as high as 45 mph. New snow accumulation of 1 to 3 inches possible.
Sunday
Snow showers, mainly before 11am. High near 33. Breezy, with a southwest wind 20 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
Sunday Night
A 30 percent chance of snow showers, mainly before 11pm. Partly cloudy, with a low around 21. Breezy, with a west wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph. New snow accumulation of less than one inch possible.
Monday
A 20 percent chance of snow showers. Mostly sunny, with a high near 36.
Monday Night
Partly cloudy, with a low around 24.
Tuesday
Sunny, with a high near 43.
Tuesday Night
Mostly clear, with a low around 28.
Wednesday
Sunny, with a high near 48.
Wednesday Night
Partly cloudy, with a low around 33.
Thursday
Mostly sunny, with a high near 48.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles ESE Chalfant CA
 37.46°N 118.16°W (Elev. 9800 ft)
4:31 am PDT Apr 10, 2026
9am PDT Apr 10, 2026-6pm PDT Apr 16, 2026
 
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