Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Mid-Atlantic; Heavy Rain & Isolated Severe Thunderstorms in Southern California

Snow squalls are likely to cross the Lower Great Lakes this evening and the Ohio Valley through the interior Northeast/northern Mid-Atlantic overnight, before potentially reaching the I-95 corridor from D.C. to New York City early New Year’s Day morning. Heavy rain and isolated severe thunderstorms will impact coastal southern California including Los Angeles tonight into early on New Year's Day. Read More >

Current conditions at

ROCK CREEK (RCEC1)

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

NA

37°F

3°C

Humidity 64%
Wind Speed W 3 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility NA
Last update 31 Dec 02:04 PM PST
Extended Forecast for

16 Miles SE Mammoth Lakes CA

Winter Storm Watch January 2, 04:00pm until January 4, 10:00am
Winter Weather Advisory December 31, 04:00pm until January 1, 12:00pm
Click here for hazard details and duration
Winter Storm Watch
Winter Weather Advisory
  • This Afternoon

    This Afternoon: Snow.  High near 42. South wind around 15 mph.  Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 42 °F

    Snow

  • Tonight

    Tonight: Snow, mainly before 4am.  Low around 27. Southwest wind around 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    Low: 27 °F

    Snow

  • New Year's Day

    New Year's Day: Snow, mainly before 4pm. The snow could be heavy at times.  High near 39. Breezy, with a southwest wind around 20 mph, with gusts as high as 30 mph.  Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    High: 39 °F

    Heavy Snow
    and Breezy

  • Thursday Night

    Thursday Night: A 30 percent chance of snow before 10pm.  Partly cloudy, with a low around 18. Breezy, with a southwest wind 15 to 25 mph, with gusts as high as 35 mph.  Little or no snow accumulation expected.

    Low: 18 °F

    Breezy.
    Chance Snow
    then Partly
    Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 41. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 41 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Snow likely, mainly after 4am.  Mostly cloudy, with a low around 20. Windy, with a southwest wind 25 to 35 mph, with gusts as high as 50 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 20 °F

    Windy. Chance
    Snow then
    Snow Likely

  • Saturday

    Saturday: Snow. The snow could be heavy at times.  High near 37. Very windy.  Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.

    High: 37 °F

    Heavy Snow
    and Very
    Windy

  • Saturday Night

    Saturday Night: Snow. The snow could be heavy at times.  Cloudy, with a low around 20. Windy.

    Low: 20 °F

    Heavy Snow
    and Windy

  • Sunday

    Sunday: Snow. The snow could be heavy at times.  Cloudy, with a high near 35. Windy.

    High: 35 °F

    Heavy Snow
    and Windy

Detailed Forecast

This Afternoon
Snow. High near 42. South wind around 15 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Tonight
Snow, mainly before 4am. Low around 27. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
New Year's Day
Snow, mainly before 4pm. The snow could be heavy at times. High near 39. Breezy, with a southwest wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Thursday Night
A 30 percent chance of snow before 10pm. Partly cloudy, with a low around 18. Breezy, with a southwest wind 15 to 25 mph, with gusts as high as 35 mph. Little or no snow accumulation expected.
Friday
Mostly sunny, with a high near 41. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Friday Night
Snow likely, mainly after 4am. Mostly cloudy, with a low around 20. Windy, with a southwest wind 25 to 35 mph, with gusts as high as 50 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Saturday
Snow. The snow could be heavy at times. High near 37. Very windy. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.
Saturday Night
Snow. The snow could be heavy at times. Cloudy, with a low around 20. Windy.
Sunday
Snow. The snow could be heavy at times. Cloudy, with a high near 35. Windy.
Sunday Night
Snow before 10pm, then snow showers after 10pm. The snow could be heavy at times. Some thunder is also possible. Mostly cloudy, with a low around 17. Windy.
Monday
Snow likely. The snow could be heavy at times. Mostly cloudy, with a high near 34. Breezy.
Monday Night
Snow likely. Mostly cloudy, with a low around 15. Breezy.
Tuesday
A chance of snow. Partly sunny, with a high near 34.
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles SE Mammoth Lakes CA
 37.49°N 118.76°W (Elev. 10397 ft)
1:15 pm PST Dec 31, 2025
2pm PST Dec 31, 2025-6pm PST Jan 6, 2026
 
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Additional Resources

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