Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather from the Southern Plains to the Great Lakes

Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, thunderstorms, and coastal impacts to the Marianas Islands into Wednesday. Typhoon conditions are likely over CNMI and tropical storm conditions over Guam. Severe thunderstorms and heavy rain are expected from the Southern Plains to the Great Lakes today. Read More >

Current conditions at

ROCK CREEK (RCEC1)

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

NA

50°F

10°C

Humidity 23%
Wind Speed NW 3 MPH
Barometer NA
Dewpoint 13°F (-11°C)
Visibility NA
Last update 14 Apr 11:04 AM PDT
Extended Forecast for

12 Miles ESE Chalfant CA

  • Today

    Today: Sunny, with a high near 42. West wind around 10 mph.

    High: 42 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 29. West wind around 10 mph.

    Low: 29 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 46. Breezy, with a west wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 46 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 29. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 29 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Clear

  • Thursday

    Thursday: Sunny, with a high near 43. Windy, with a west wind 15 to 20 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 40 mph.

    High: 43 °F

    Sunny and
    Windy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 16. Windy, with a north wind 25 to 35 mph, with gusts as high as 50 mph.

    Low: 16 °F

    Mostly Clear
    and Windy

  • Friday

    Friday: Sunny, with a high near 39.

    High: 39 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 26.

    Low: 26 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 45. Breezy.

    High: 45 °F

    Sunny then
    Sunny and
    Breezy

Detailed Forecast

Today
Sunny, with a high near 42. West wind around 10 mph.
Tonight
Mostly clear, with a low around 29. West wind around 10 mph.
Wednesday
Mostly sunny, with a high near 46. Breezy, with a west wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Wednesday Night
Partly cloudy, with a low around 29. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
Thursday
Sunny, with a high near 43. Windy, with a west wind 15 to 20 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 40 mph.
Thursday Night
Mostly clear, with a low around 16. Windy, with a north wind 25 to 35 mph, with gusts as high as 50 mph.
Friday
Sunny, with a high near 39.
Friday Night
Mostly clear, with a low around 26.
Saturday
Sunny, with a high near 45. Breezy.
Saturday Night
Partly cloudy, with a low around 29. Breezy.
Sunday
Mostly sunny, with a high near 49. Windy.
Sunday Night
Partly cloudy, with a low around 30. Windy.
Monday
A slight chance of snow showers. Mostly sunny, with a high near 46. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles ESE Chalfant CA
 37.46°N 118.16°W (Elev. 9800 ft)
11:30 am PDT Apr 14, 2026
11am PDT Apr 14, 2026-6pm PDT Apr 20, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database