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 >

Current conditions at

Mammoth Yosemite Airport (KMMH)

Lat: 37.6241°NLon: 118.8423°WElev: 7112.0ft.

snow,freezing fog

30°F

-1°C

Humidity 92%
Wind Speed NW 8 MPH
Barometer 29.91 in (1012.87 mb)
Dewpoint 28°F (-2°C)
Visibility 0.25 mi
Wind Chill22°F (-6°C)
Last update 12 Apr 04:35 PM PDT
Extended Forecast for

10 Miles SE Mammoth Lakes CA

Winter Storm Warning April 12, 04:56pm until April 12, 11:00pm
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning April 12, 04:56pm until April 12, 11:00pm

    NOW until 11:00pm Sun

    Winter Storm Warning

  • This Afternoon

    High: 25 °F

    Heavy Snow
    and Windy

  • Tonight

    Tonight: A 50 percent chance of snow showers before 11pm.  Partly cloudy, with a low around 13. Breezy, with a southwest wind 20 to 25 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 40 mph.  New snow accumulation of 1 to 2 inches possible.

    Low: 13 °F

    Chance Snow
    Showers and
    Breezy then
    Mostly Clear

  • Monday

    Monday: Snow showers likely, mainly after 2pm. Some thunder is also possible.  Partly sunny, with a high near 29. Southwest wind 5 to 10 mph becoming north in the morning. Winds could gust as high as 20 mph.  Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 29 °F

    Snow Showers
    Likely

  • Monday Night

    Monday Night: Mostly clear, with a low around 16. Northwest wind 5 to 10 mph becoming southwest after midnight. Winds could gust as high as 20 mph.

    Low: 16 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 38. West wind 5 to 10 mph.

    High: 38 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 23. Southwest wind 5 to 15 mph.

    Low: 23 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 40. Breezy.

    High: 40 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 25. Breezy.

    Low: 25 °F

    Mostly Cloudy
    and Breezy
    then Partly
    Cloudy

Detailed Forecast

This Afternoon
Snow showers likely. The snow could be heavy at times. Some thunder is also possible. Mostly cloudy, with a high near 25. Windy, with a southwest wind around 30 mph, with gusts as high as 45 mph. Chance of precipitation is 70%. Total daytime snow accumulation of 3 to 5 inches possible.
Tonight
A 50 percent chance of snow showers before 11pm. Partly cloudy, with a low around 13. Breezy, with a southwest wind 20 to 25 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 40 mph. New snow accumulation of 1 to 2 inches possible.
Monday
Snow showers likely, mainly after 2pm. Some thunder is also possible. Partly sunny, with a high near 29. Southwest wind 5 to 10 mph becoming north in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Monday Night
Mostly clear, with a low around 16. Northwest wind 5 to 10 mph becoming southwest after midnight. Winds could gust as high as 20 mph.
Tuesday
Sunny, with a high near 38. West wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 23. Southwest wind 5 to 15 mph.
Wednesday
Mostly sunny, with a high near 40. Breezy.
Wednesday Night
Partly cloudy, with a low around 25. Breezy.
Thursday
A slight chance of snow showers after 11am. Mostly sunny, with a high near 36. Breezy.
Thursday Night
Mostly clear, with a low around 14. Breezy.
Friday
Sunny, with a high near 39.
Friday Night
Mostly clear, with a low around 22.
Saturday
Sunny, with a high near 44.
Saturday Night
Partly cloudy, with a low around 26.
Sunday
Mostly sunny, with a high near 47. Breezy.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles SE Mammoth Lakes CA
 37.54°N 118.83°W (Elev. 9216 ft)
4:30 pm PDT Apr 12, 2026
4pm PDT Apr 12, 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