National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Tracking Late December Winter Storm Expected to Impact the Northern Plains through the Northeast U.S.

A winter storm system will rapidly intensify over the Midwest on Sunday and track through the Great Lakes on Monday. Periods of heavy snow are anticipated across the Upper Great Lakes late Sunday and continuing into Monday. At least 1/10 inch of ice accumulation is expected from a wintry mix across much of the interior Northeast U.S. starting Sunday afternoon. Read More >

Current conditions at

TUOLUMNE MEADOWS TUM (TUMC1)

Lat: 37.87639°NLon: 119.34806°WElev: 8654.0ft.

NA

7°F

-14°C

Humidity 87%
Wind Speed E 1 MPH
Barometer NA
Dewpoint 4°F (-16°C)
Visibility NA
Last update 27 Dec 09:00 PM PST
Extended Forecast for

11 Miles W Conway Summit CA

  • Overnight

    Overnight: Mostly clear, with a steady temperature around 7. Wind chill values as low as -8. North wind around 10 mph.

    Low: 7 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly cloudy through mid morning, then gradual clearing and cold, with a high near 30. Wind chill values as low as -4. Northeast wind around 10 mph, with gusts as high as 15 mph.

    High: 30 °F

    Cold

  • Sunday Night

    Sunday Night: Mostly clear, with a steady temperature around 12. Wind chill values as low as -8. Blustery, with an east northeast wind around 20 mph, with gusts as high as 30 mph.

    Low: 12 °F

    Mostly Clear
    and Blustery

  • Monday

    Monday: Sunny, with a high near 35. Wind chill values as low as -8. Breezy, with an east northeast wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 35 °F

    Sunny and
    Breezy then
    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 16. Breezy, with an east wind 15 to 20 mph.

    Low: 16 °F

    Clear and
    Breezy

  • Tuesday

    Tuesday: Sunny, with a high near 38. East southeast wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 38 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 17. South southeast wind around 10 mph becoming west southwest after midnight. Winds could gust as high as 15 mph.

    Low: 17 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 10 percent chance of snow after 4pm. Partly sunny, with a high near 39. West southwest wind 5 to 10 mph.

    High: 39 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Wednesday Night

    Wednesday Night: A 40 percent chance of snow, mainly after 10pm. Mostly cloudy, with a low around 21. West wind 5 to 10 mph.

    Low: 21 °F

    Chance Snow

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 7. Wind chill values as low as -8. North wind around 10 mph.
Sunday
Mostly cloudy through mid morning, then gradual clearing and cold, with a high near 30. Wind chill values as low as -4. Northeast wind around 10 mph, with gusts as high as 15 mph.
Sunday Night
Mostly clear, with a steady temperature around 12. Wind chill values as low as -8. Blustery, with an east northeast wind around 20 mph, with gusts as high as 30 mph.
Monday
Sunny, with a high near 35. Wind chill values as low as -8. Breezy, with an east northeast wind 15 to 20 mph, with gusts as high as 30 mph.
Monday Night
Clear, with a low around 16. Breezy, with an east wind 15 to 20 mph.
Tuesday
Sunny, with a high near 38. East southeast wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 17. South southeast wind around 10 mph becoming west southwest after midnight. Winds could gust as high as 15 mph.
Wednesday
A 10 percent chance of snow after 4pm. Partly sunny, with a high near 39. West southwest wind 5 to 10 mph.
Wednesday Night
A 40 percent chance of snow, mainly after 10pm. Mostly cloudy, with a low around 21. West wind 5 to 10 mph.
New Year's Day
A 50 percent chance of snow. Mostly cloudy, with a high near 36. West wind around 10 mph, with gusts as high as 15 mph.
Thursday Night
Snow likely. Mostly cloudy, with a low around 19. West southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Friday
Snow likely. Mostly cloudy, with a high near 33. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Friday Night
Snow likely. Mostly cloudy, with a low around 17. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Saturday
A 50 percent chance of snow. Mostly cloudy and cold, with a high near 32. West southwest wind 10 to 15 mph, with gusts as high as 20 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles W Conway Summit CA
 38.08°N 119.38°W (Elev. 11601 ft)
Last Update:
1:57 am PST Dec 28, 2025
Forecast Valid:
2am PST Dec 28, 2025-6pm PST Jan 3, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation