Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

Top Stn/Summit (MTH03)

Lat: 37.63059°NLon: 119.03282°WElev: 11034.0ft.

NA

37°F

3°C

Humidity 25%
Wind Speed WSW 5 MPH
Barometer NA
Dewpoint 4°F (-16°C)
Visibility NA
Wind Chill33°F (1°C)
Last update 18 Jan 05:45 PM PST
Extended Forecast for

3 Miles SSW Mammoth Lakes CA

  • Tonight

    Tonight: Partly cloudy, with a low around 30. West wind around 10 mph becoming northeast after midnight.

    Low: 30 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 43. Northeast wind around 10 mph.

    High: 43 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 28. Northeast wind around 10 mph becoming northwest after midnight.

    Low: 28 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 40. West wind around 10 mph.

    High: 40 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 29. West wind around 10 mph.

    Low: 29 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 41. West wind around 10 mph.

    High: 41 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 37.

    High: 37 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 30. West wind around 10 mph becoming northeast after midnight.
M.L.King Day
Sunny, with a high near 43. Northeast wind around 10 mph.
Monday Night
Mostly clear, with a low around 28. Northeast wind around 10 mph becoming northwest after midnight.
Tuesday
Sunny, with a high near 40. West wind around 10 mph.
Tuesday Night
Partly cloudy, with a low around 29. West wind around 10 mph.
Wednesday
Partly sunny, with a high near 41. West wind around 10 mph.
Wednesday Night
Mostly cloudy, with a low around 29.
Thursday
Mostly sunny, with a high near 37.
Thursday Night
Mostly clear, with a low around 25.
Friday
Sunny, with a high near 33.
Friday Night
Mostly clear, with a low around 24.
Saturday
Sunny, with a high near 34.
Saturday Night
Partly cloudy, with a low around 24.
Sunday
Mostly sunny, with a high near 35.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Mammoth Lakes CA
 37.59°N 119.01°W (Elev. 9957 ft)
1:15 pm PST Jan 18, 2026
6pm PST Jan 18, 2026-6pm PST Jan 25, 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