Strong Atmospheric River Bringing Heavy Rain to the Pacific Northwest; Areas of Snow in the North-Central and Eastern U.S.

A strong atmospheric river will bring prolonged heavy rainfall along with gusty winds to the Pacific Northwest through much of this week. The heavy rainfall may lead to widespread urban and river flooding. Accumulating snow is expected over parts of the central Appalachians and Mid-Atlantic today as well as the Upper Midwest and the Upper Great Lakes this evening into Tuesday. Read More >

Current conditions at

Mammoth Yosemite Airport (KMMH)

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

Clear

52°F

11°C

Humidity 27%
Wind Speed SE 9 MPH
Barometer 30.41 in (1029.8 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 08 Dec 11:55 AM PST
Extended Forecast for

12 Miles SE Mammoth Lakes CA

  • This Afternoon

    This Afternoon: Sunny, with a temperature falling to around 30 by 5pm. Northwest wind 5 to 10 mph.

    High: 39 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 26. West wind around 10 mph.

    Low: 26 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 41. North wind 10 to 15 mph.

    High: 41 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 27. West wind around 10 mph.

    Low: 27 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 42. Northwest wind 5 to 10 mph.

    High: 42 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 26. West wind around 10 mph.

    Low: 26 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 43.

    High: 43 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 26.

    Low: 26 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 42.

    High: 42 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a temperature falling to around 30 by 5pm. Northwest wind 5 to 10 mph.
Tonight
Mostly clear, with a low around 26. West wind around 10 mph.
Tuesday
Sunny, with a high near 41. North wind 10 to 15 mph.
Tuesday Night
Mostly clear, with a low around 27. West wind around 10 mph.
Wednesday
Sunny, with a high near 42. Northwest wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 26. West wind around 10 mph.
Thursday
Sunny, with a high near 43.
Thursday Night
Mostly clear, with a low around 26.
Friday
Sunny, with a high near 42.
Friday Night
Mostly clear, with a low around 26.
Saturday
Sunny, with a high near 39.
Saturday Night
Mostly clear, with a low around 24.
Sunday
Sunny, with a high near 36.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles SE Mammoth Lakes CA
 37.5°N 118.85°W (Elev. 11572 ft)
10:30 am PST Dec 8, 2025
12pm PST Dec 8, 2025-6pm PST Dec 14, 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