Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Current conditions at

TUOLUMNE MEADOWS TUM (TUMC1)

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

NA

19°F

-7°C

Humidity 88%
Wind Speed SSW 1 MPH
Barometer NA
Dewpoint 16°F (-9°C)
Visibility NA
Last update 12 Apr 07:00 AM PDT
Extended Forecast for

12 Miles W Conway Summit CA

Winter Storm Warning April 12, 07:16am until April 12, 11:00pm
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning April 12, 07:16am until April 12, 11:00pm

    NOW until 11:00pm Sun

    Winter Storm Warning

  • Today

    High: 28 °F

    Heavy Snow
    and Breezy

  • Tonight

    Tonight: Snow, mainly before 11pm. The snow could be heavy at times.  Low around 9. Breezy, with a south southwest wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph.  Chance of precipitation is 80%. New snow accumulation of 4 to 8 inches possible.

    Low: 9 °F

    Heavy Snow
    and Breezy
    then Chance
    Snow

  • Monday

    Monday: A 50 percent chance of snow.  Partly sunny, with a high near 33. Wind chill values as low as zero. South southwest wind 5 to 10 mph becoming west northwest in the morning. Winds could gust as high as 20 mph.  New snow accumulation of 1 to 2 inches possible.

    High: 33 °F

    Chance Snow

  • Monday Night

    Monday Night: A 20 percent chance of snow before 11pm.  Partly cloudy, with a low around 11. Wind chill values as low as 3. West northwest wind 5 to 10 mph becoming south southwest after midnight. Winds could gust as high as 20 mph.

    Low: 11 °F

    Slight Chance
    Snow then
    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 39. West southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 39 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 16. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 16 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 41. Breezy, with a southwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 41 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 19. Breezy, with a west southwest wind 10 to 20 mph, with gusts as high as 30 mph.

    Low: 19 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

Detailed Forecast

Today
Snow showers before 8am, then snow between 8am and 11am, then snow showers after 11am. The snow could be heavy at times. Some thunder is also possible. High near 28. Wind chill values as low as -4. Breezy, with a south southwest wind around 25 mph, with gusts as high as 45 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 8 to 12 inches possible.
Tonight
Snow, mainly before 11pm. The snow could be heavy at times. Low around 9. Breezy, with a south southwest wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New snow accumulation of 4 to 8 inches possible.
Monday
A 50 percent chance of snow. Partly sunny, with a high near 33. Wind chill values as low as zero. South southwest wind 5 to 10 mph becoming west northwest in the morning. Winds could gust as high as 20 mph. New snow accumulation of 1 to 2 inches possible.
Monday Night
A 20 percent chance of snow before 11pm. Partly cloudy, with a low around 11. Wind chill values as low as 3. West northwest wind 5 to 10 mph becoming south southwest after midnight. Winds could gust as high as 20 mph.
Tuesday
Sunny, with a high near 39. West southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 16. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Wednesday
Mostly sunny, with a high near 41. Breezy, with a southwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Wednesday Night
Mostly cloudy, with a low around 19. Breezy, with a west southwest wind 10 to 20 mph, with gusts as high as 30 mph.
Thursday
A slight chance of snow before 11am, then a chance of snow showers after 11am. Some thunder is also possible. Partly sunny, with a high near 38. Breezy, with a west southwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 10. Breezy, with a west wind 15 to 20 mph becoming east northeast after midnight. Winds could gust as high as 30 mph.
Friday
Sunny, with a high near 41. East northeast wind around 15 mph becoming west in the afternoon. Winds could gust as high as 25 mph.
Friday Night
Mostly clear, with a low around 16. West southwest wind 10 to 15 mph becoming east in the evening. Winds could gust as high as 20 mph.
Saturday
Mostly sunny, with a high near 47. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles W Conway Summit CA
 38.09°N 119.42°W (Elev. 9783 ft)
6:56 am PDT Apr 12, 2026
7am PDT Apr 12, 2026-6pm PDT Apr 18, 2026
 
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