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.

Partly Cloudy

36°F

2°C

Humidity 47%
Wind Speed WSW 5 MPH
Barometer 29.86 in (1011.18 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 12 Apr 01:55 PM PDT
Extended Forecast for

8 Miles ESE Mammoth Lakes CA

Winter Storm Warning April 12, 02:15pm until April 12, 11:00pm
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning April 12, 02:15pm until April 12, 11:00pm

    NOW until 11:00pm Sun

    Winter Storm Warning

  • This Afternoon

    High: 40 °F

    Snow Showers
    Likely

  • Tonight

    Tonight: A 40 percent chance of snow showers before 11pm.  Partly cloudy, with a low around 13. Southwest wind 10 to 15 mph becoming light  after midnight.  New snow accumulation of less than a half inch possible.

    Low: 13 °F

    Chance Snow
    Showers then
    Mostly Clear

  • Monday

    Monday: Snow showers likely, mainly after 2pm. Some thunder is also possible.  Mostly sunny, with a high near 43. Calm wind becoming west around 5 mph in the afternoon.  Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 43 °F

    Snow Showers
    Likely

  • Monday Night

    Monday Night: Mostly clear, with a low around 16. West wind around 5 mph becoming calm  in the evening.

    Low: 16 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 51. Calm wind becoming west around 5 mph.

    High: 51 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 23. West wind around 5 mph becoming calm  in the evening.

    Low: 23 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 25 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Snow showers likely. Some thunder is also possible. Mostly cloudy, with a high near 40. Southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. Total daytime snow accumulation of less than one inch possible.
Tonight
A 40 percent chance of snow showers before 11pm. Partly cloudy, with a low around 13. Southwest wind 10 to 15 mph becoming light after midnight. New snow accumulation of less than a half inch possible.
Monday
Snow showers likely, mainly after 2pm. Some thunder is also possible. Mostly sunny, with a high near 43. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 60%. Little or no snow accumulation expected.
Monday Night
Mostly clear, with a low around 16. West wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 51. Calm wind becoming west around 5 mph.
Tuesday Night
Mostly clear, with a low around 23. West wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 53.
Wednesday Night
Partly cloudy, with a low around 25.
Thursday
A slight chance of snow showers after 11am. Mostly sunny, with a high near 49.
Thursday Night
Mostly clear, with a low around 14.
Friday
Sunny, with a high near 51.
Friday Night
Mostly clear, with a low around 22.
Saturday
Sunny, with a high near 57.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles ESE Mammoth Lakes CA
 37.61°N 118.82°W (Elev. 7201 ft)
11:30 am PDT Apr 12, 2026
2pm PDT Apr 12, 2026-6pm PDT Apr 18, 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