Heavy Great Lakes Snow through Friday; Watching Potential for Major Winter Storm Late Week into this Weekend

Heavy lake effect snow will continue in the Great Lakes into Wednesday before another storm brings a widespread general snow followed by another round of heavy lake effect snow. A wide-ranging winter storm will produce great swaths of heavy snow, sleet, and treacherous freezing rain from the southern Rockies/Plains and Mid-South starting Friday and shifting toward the East Coast through Sunday. Read More >

Current conditions at

Mammoth Yosemite Airport (KMMH)

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

Clear

34°F

1°C

Humidity 50%
Wind Speed N 0 MPH
Barometer 30.27 in (1025.06 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Last update 20 Jan 02:35 PM PST
Extended Forecast for

8 Miles E Mammoth Lakes CA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 35. Calm wind.

    High: 35 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 18. Calm wind.

    Low: 18 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 49. Calm wind.

    High: 49 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A slight chance of rain and snow between 4am and 5am, then a slight chance of snow after 5am.  Snow level 7400 feet. Mostly cloudy, with a low around 18. Calm wind.  Chance of precipitation is 10%.

    Low: 18 °F

    Cloudy then
    Slight Chance
    Rain/Snow

  • Thursday

    Thursday: A slight chance of rain and snow before 8am, then a slight chance of snow between 8am and 10am, then a chance of rain and snow after 10am.  Snow level 7400 feet. Mostly cloudy, with a high near 46. Calm wind.  Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 46 °F

    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A slight chance of rain and snow before 10pm.  Snow level 7200 feet. Mostly cloudy, with a low around 15. Calm wind.  Chance of precipitation is 20%.

    Low: 15 °F

    Slight Chance
    Rain/Snow
    then Partly
    Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 15.

    Low: 15 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 35.

    High: 35 °F

    Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 35. Calm wind.
Tonight
Mostly cloudy, with a low around 18. Calm wind.
Wednesday
Mostly cloudy, with a high near 49. Calm wind.
Wednesday Night
A slight chance of rain and snow between 4am and 5am, then a slight chance of snow after 5am. Snow level 7400 feet. Mostly cloudy, with a low around 18. Calm wind. Chance of precipitation is 10%.
Thursday
A slight chance of rain and snow before 8am, then a slight chance of snow between 8am and 10am, then a chance of rain and snow after 10am. Snow level 7400 feet. Mostly cloudy, with a high near 46. Calm wind. Chance of precipitation is 30%. Little or no snow accumulation expected.
Thursday Night
A slight chance of rain and snow before 10pm. Snow level 7200 feet. Mostly cloudy, with a low around 15. Calm wind. Chance of precipitation is 20%.
Friday
Mostly sunny, with a high near 41.
Friday Night
Partly cloudy, with a low around 15.
Saturday
Sunny, with a high near 35.
Saturday Night
Mostly clear, with a low around 11.
Sunday
Mostly sunny, with a high near 41.
Sunday Night
Partly cloudy, with a low around 17.
Monday
Partly sunny, with a high near 43.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles E Mammoth Lakes CA
 37.64°N 118.82°W (Elev. 7198 ft)
1:15 pm PST Jan 20, 2026
2pm PST Jan 20, 2026-6pm PST Jan 26, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database