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Hawaii and Guam Concerns; Severe Weather for the Plains; Heavy Snow for Sierra-Nevada

Heavy rainfall capable of causing flash flooding will continue to impact Hawaii through Monday. Severe thunderstorms and heavy rain are possible in parts of Texas and the southern Plains and the Upper Great Lakes. Heavy mountain snow continues in California's Sierra Nevada and rain with gusty winds to lower elevations. Super Typhoon Sinlaku will impact the Marianas through midweek. Read More >

Hazardous Weather Conditions

Current conditions at

ROCK CREEK (RCEC1)

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

NA

29°F

-2°C

Humidity 78%
Wind Speed W 2 MPH
Barometer NA
Dewpoint 23°F (-5°C)
Visibility NA
Last update 12 Apr 10:04 PM PDT
Extended Forecast for

16 Miles ESE Mammoth Lakes CA

Winter Storm Warning April 12, 10:18pm until April 12, 11:00pm
Click here for hazard details and duration
...
  •  
    Winter Storm Warning April 12, 10:18pm until April 12, 11:00pm

    NOW until 11:00pm Sun

    Winter Storm Warning

  • Tonight

    Low: 18 °F

    Slight Chance
    Snow Showers
    then Mostly
    Clear

  • Monday

    Monday: A 50 percent chance of snow showers, mainly after 11am. Some thunder is also possible. Mostly sunny, with a high near 44. West wind around 5 mph becoming northwest in the morning. Little or no snow accumulation expected.

    High: 44 °F

    Chance Snow
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 21. West wind around 5 mph.

    Low: 21 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 52. Calm wind becoming west around 5 mph in the afternoon.

    High: 52 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 26. West wind around 5 mph becoming calm in the evening.

    Low: 26 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 55. Southwest wind 5 to 10 mph.

    High: 55 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

Detailed Forecast

Tonight
A 20 percent chance of snow showers before 11pm. Mostly clear, with a low around 18. West wind around 5 mph.
Monday
A 50 percent chance of snow showers, mainly after 11am. Some thunder is also possible. Mostly sunny, with a high near 44. West wind around 5 mph becoming northwest in the morning. Little or no snow accumulation expected.
Monday Night
Mostly clear, with a low around 21. West wind around 5 mph.
Tuesday
Sunny, with a high near 52. Calm wind becoming west around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 26. West wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 55. Southwest wind 5 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 28.
Thursday
Mostly sunny, with a high near 50.
Thursday Night
Mostly clear, with a low around 18.
Friday
Sunny, with a high near 51.
Friday Night
Mostly clear, with a low around 25.
Saturday
Sunny, with a high near 58.
Saturday Night
Partly cloudy, with a low around 29.
Sunday
Mostly sunny, with a high near 61.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
16 Miles ESE Mammoth Lakes CA
 37.56°N 118.69°W (Elev. 7001 ft)
Last Update:
4:30 pm PDT Apr 12, 2026
Forecast Valid:
10pm PDT Apr 12, 2026-6pm PDT Apr 19, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation