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

14 Miles SE Mammoth Lakes CA

  • This Afternoon

    This Afternoon: Snow showers likely, mainly between 2pm and 5pm. Some thunder is also possible.  Mostly cloudy, with a high near 30. East wind around 10 mph becoming north.  Chance of precipitation is 60%. Total daytime snow accumulation of 1 to 2 inches possible.

    High: 30 °F

    Snow Showers
    Likely

  • Tonight

    Tonight: A 30 percent chance of snow showers before 8pm.  Partly cloudy, with a low around 11. Blustery, with a west wind 15 to 20 mph.  Little or no snow accumulation expected.

    Low: 11 °F

    Chance Snow
    Showers and
    Blustery then
    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 39. West wind 5 to 10 mph.

    High: 39 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 18. Southwest wind around 10 mph.

    Low: 18 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 42. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 42 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 19. Windy, with a southwest wind 20 to 30 mph, with gusts as high as 40 mph.

    Low: 19 °F

    Partly Cloudy
    and Windy

  • Thursday

    Thursday: Mostly sunny, with a high near 37. Windy.

    High: 37 °F

    Mostly Sunny
    and Windy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 10. Breezy.

    Low: 10 °F

    Mostly Clear
    and Breezy

  • Friday

    Friday: Sunny, with a high near 39.

    High: 39 °F

    Sunny

Detailed Forecast

This Afternoon
Snow showers likely, mainly between 2pm and 5pm. Some thunder is also possible. Mostly cloudy, with a high near 30. East wind around 10 mph becoming north. Chance of precipitation is 60%. Total daytime snow accumulation of 1 to 2 inches possible.
Tonight
A 30 percent chance of snow showers before 8pm. Partly cloudy, with a low around 11. Blustery, with a west wind 15 to 20 mph. Little or no snow accumulation expected.
Tuesday
Sunny, with a high near 39. West wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 18. Southwest wind around 10 mph.
Wednesday
Mostly sunny, with a high near 42. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph.
Wednesday Night
Partly cloudy, with a low around 19. Windy, with a southwest wind 20 to 30 mph, with gusts as high as 40 mph.
Thursday
Mostly sunny, with a high near 37. Windy.
Thursday Night
Mostly clear, with a low around 10. Breezy.
Friday
Sunny, with a high near 39.
Friday Night
Partly cloudy, with a low around 19.
Saturday
Mostly sunny, with a high near 43.
Saturday Night
Mostly cloudy, with a low around 21.
Sunday
Mostly sunny, with a high near 43. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
14 Miles SE Mammoth Lakes CA
 37.51°N 118.77°W (Elev. 11096 ft)
11:30 am PDT Apr 13, 2026
12pm PDT Apr 13, 2026-6pm PDT Apr 19, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database