Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Current conditions at

Mammoth Yosemite Airport (KMMH)

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

Clear

34°F

1°C

Humidity 47%
Wind Speed N 4 MPH
Barometer 30.42 in (1030.14 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 09 Dec 08:15 PM PST
Extended Forecast for

5 Miles ENE Mammoth Lakes CA

  • Tonight

    Tonight: Mostly clear, with a low around 33. West wind around 5 mph.

    Low: 33 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 61. Calm wind.

    High: 61 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 34. Calm wind becoming west around 5 mph.

    Low: 34 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 62. Calm wind.

    High: 62 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 33. Calm wind becoming west around 5 mph.

    Low: 33 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 60. Calm wind.

    High: 60 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 33. West wind around 5 mph.
Wednesday
Sunny, with a high near 61. Calm wind.
Wednesday Night
Mostly clear, with a low around 34. Calm wind becoming west around 5 mph.
Thursday
Sunny, with a high near 62. Calm wind.
Thursday Night
Clear, with a low around 33. Calm wind becoming west around 5 mph.
Friday
Sunny, with a high near 60. Calm wind.
Friday Night
Mostly clear, with a low around 33.
Saturday
Sunny, with a high near 58.
Saturday Night
Partly cloudy, with a low around 31.
Sunday
Sunny, with a high near 56.
Sunday Night
Partly cloudy, with a low around 31.
Monday
Mostly sunny, with a high near 55.
Monday Night
Partly cloudy, with a low around 32.
Tuesday
Mostly sunny, with a high near 53.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ENE Mammoth Lakes CA
 37.67°N 118.89°W (Elev. 7671 ft)
3:30 pm PST Dec 9, 2025
8pm PST Dec 9, 2025-6pm PST Dec 16, 2025
 
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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