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

ROCK CREEK (RCEC1)

Lat: 37.55983°NLon: 118.67841°WElev: 7103.0ft.

NA

33°F

1°C

Humidity 53%
Wind Speed W 4 MPH
Barometer NA
Dewpoint 18°F (-8°C)
Visibility NA
Wind Chill29°F (-2°C)
Last update 19 Jan 06:04 PM PST
Extended Forecast for

16 Miles ESE Mammoth Lakes CA

  • Tonight

    Tonight: Mostly clear, with a low around 23. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 23 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 45. Northwest wind around 5 mph.

    High: 45 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 26. Calm wind.

    Low: 26 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 48. West wind around 5 mph.

    High: 48 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 28. Calm wind.

    Low: 28 °F

    Mostly Cloudy

  • Thursday

    Thursday: A slight chance of rain and snow between 10am and 1pm, then a slight chance of rain after 1pm.  Snow level 7500 feet. Mostly cloudy, with a high near 42. Calm wind becoming east around 5 mph in the afternoon.  Chance of precipitation is 20%.

    High: 42 °F

    Slight Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 18.

    Low: 18 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 23. Northwest wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 45. Northwest wind around 5 mph.
Tuesday Night
Mostly cloudy, with a low around 26. Calm wind.
Wednesday
Mostly cloudy, with a high near 48. West wind around 5 mph.
Wednesday Night
Mostly cloudy, with a low around 28. Calm wind.
Thursday
A slight chance of rain and snow between 10am and 1pm, then a slight chance of rain after 1pm. Snow level 7500 feet. Mostly cloudy, with a high near 42. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 20%.
Thursday Night
Mostly cloudy, with a low around 24.
Friday
Mostly sunny, with a high near 43.
Friday Night
Mostly clear, with a low around 18.
Saturday
Sunny, with a high near 40.
Saturday Night
Mostly clear, with a low around 19.
Sunday
Mostly sunny, with a high near 44.
Sunday Night
Partly cloudy, with a low around 22.
Monday
Mostly sunny, with a high near 46.
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles ESE Mammoth Lakes CA
 37.56°N 118.69°W (Elev. 7001 ft)
1:15 pm PST Jan 19, 2026
6pm PST Jan 19, 2026-6pm PST Jan 26, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database