Super Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather Threat from the Central Plains to the Great Lakes

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, and thunderstorms to the Marianas Islands into Wednesday. Tropical Storm conditions are likely over Guam. Severe thunderstorms and heavy rain are likely across the Upper Mississippi Valley and Great Lakes region with potential for large to very large hail, damaging wind, and tornadoes through Tuesday. Read More >

Current conditions at

ROCK CREEK (RCEC1)

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

NA

42°F

6°C

Humidity 42%
Wind Speed WNW 4 MPH
Barometer NA
Dewpoint 20°F (-7°C)
Visibility NA
Wind Chill40°F (4°C)
Last update 13 Apr 12:04 PM PDT
Extended Forecast for

11 Miles WNW Chalfant CA

  • This Afternoon

    This Afternoon: A 40 percent chance of snow showers, mainly before 5pm.  Partly sunny, with a high near 44. Northwest wind around 10 mph.  Little or no snow accumulation expected.

    High: 44 °F

    Chance Snow
    Showers

  • Tonight

    Tonight: A 20 percent chance of snow showers before 8pm.  Mostly cloudy, then gradually becoming clear, with a low around 29. Northwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 29 °F

    Slight Chance
    Snow Showers
    then Clear

  • Tuesday

    Tuesday: Sunny, with a high near 52. Northwest wind 5 to 10 mph becoming southwest in the morning.

    High: 52 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 34. West wind around 10 mph.

    Low: 34 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 56. West wind 5 to 15 mph becoming south in the morning.

    High: 56 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 34. West wind 10 to 15 mph.

    Low: 34 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 24. Blustery.

    Low: 24 °F

    Mostly Clear
    and Blustery
    then Mostly
    Clear

  • Friday

    Friday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

Detailed Forecast

This Afternoon
A 40 percent chance of snow showers, mainly before 5pm. Partly sunny, with a high near 44. Northwest wind around 10 mph. Little or no snow accumulation expected.
Tonight
A 20 percent chance of snow showers before 8pm. Mostly cloudy, then gradually becoming clear, with a low around 29. Northwest wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 52. Northwest wind 5 to 10 mph becoming southwest in the morning.
Tuesday Night
Mostly clear, with a low around 34. West wind around 10 mph.
Wednesday
Mostly sunny, with a high near 56. West wind 5 to 15 mph becoming south in the morning.
Wednesday Night
Partly cloudy, with a low around 34. West wind 10 to 15 mph.
Thursday
Sunny, with a high near 49.
Thursday Night
Mostly clear, with a low around 24. Blustery.
Friday
Sunny, with a high near 50.
Friday Night
Mostly clear, with a low around 33.
Saturday
Mostly sunny, with a high near 56.
Saturday Night
Mostly cloudy, with a low around 36.
Sunday
Mostly sunny, with a high near 57.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles WNW Chalfant CA
 37.58°N 118.56°W (Elev. 7602 ft)
11:30 am PDT Apr 13, 2026
1pm PDT Apr 13, 2026-6pm PDT Apr 19, 2026
 
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Additional Resources

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Hourly Weather Forecast

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