Heavy Rainfall in the Southern Plains and Mississippi Valley; Thunderstorms in Eastern Colorado on Thursday

A multiple day heavy rainfall event will begin to set up from the Southern Plains into the Mississippi Valley Thursday, peaking in intensity over the holiday weekend. Widely scattered thunderstorms are expected to develop across eastern Colorado Thursday afternoon and evening. Large hail will be the primary hazard. Read More >

Current conditions at

TUOLUMNE MEADOWS TUM (TUMC1)

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

NA

36°F

2°C

Humidity 78%
Wind Speed ESE 1 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 20 May 11:00 PM PDT
Extended Forecast for

11 Miles W Conway Summit CA

  • Tonight

    Tonight: Mostly clear, with a low around 29. Northeast wind around 5 mph.

    Low: 29 °F

    Mostly Clear

  • Thursday

    Thursday: A 10 percent chance of rain after 5pm.  Mostly sunny, with a high near 56. Southwest wind 5 to 15 mph becoming west northwest in the morning.

    High: 56 °F

    Sunny then
    Slight Chance
    Rain

  • Thursday Night

    Thursday Night: A 10 percent chance of rain before 8pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around 29. West wind 5 to 10 mph becoming east northeast in the evening.

    Low: 29 °F

    Slight Chance
    Rain then
    Mostly Clear

  • Friday

    Friday: A slight chance of rain between 11am and 2pm, then a slight chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 55. West wind 5 to 15 mph.  Chance of precipitation is 20%.

    High: 55 °F

    Slight Chance
    Rain then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 29. West southwest wind 5 to 10 mph.

    Low: 29 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 57. West southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 57 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 29. West southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 29 °F

    Mostly Clear

  • Sunday

    Sunday: A 10 percent chance of showers and thunderstorms after 11am.  Sunny, with a high near 57. West southwest wind 5 to 10 mph becoming east southeast in the morning. Winds could gust as high as 20 mph.

    High: 57 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 27. West southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 27 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 29. Northeast wind around 5 mph.
Thursday
A 10 percent chance of rain after 5pm. Mostly sunny, with a high near 56. Southwest wind 5 to 15 mph becoming west northwest in the morning.
Thursday Night
A 10 percent chance of rain before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 29. West wind 5 to 10 mph becoming east northeast in the evening.
Friday
A slight chance of rain between 11am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 55. West wind 5 to 15 mph. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 29. West southwest wind 5 to 10 mph.
Saturday
Sunny, with a high near 57. West southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Saturday Night
Mostly clear, with a low around 29. West southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Sunday
A 10 percent chance of showers and thunderstorms after 11am. Sunny, with a high near 57. West southwest wind 5 to 10 mph becoming east southeast in the morning. Winds could gust as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 27. West southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Memorial Day
A 10 percent chance of showers and thunderstorms after 11am. Sunny, with a high near 55. West southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Monday Night
Partly cloudy, with a low around 21. Breezy, with a southwest wind 20 to 25 mph, with gusts as high as 40 mph.
Tuesday
A 20 percent chance of snow. Mostly sunny, with a high near 44. Windy, with a southwest wind 30 to 35 mph, with gusts as high as 55 mph.
Tuesday Night
A 30 percent chance of snow. Partly cloudy, with a low around 21. Windy, with a west southwest wind 20 to 30 mph decreasing to 10 to 20 mph after midnight. Winds could gust as high as 45 mph.
Wednesday
A 20 percent chance of snow showers. Some thunder is also possible. Mostly sunny, with a high near 41. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles W Conway Summit CA
 38.08°N 119.38°W (Elev. 11601 ft)
11:33 pm PDT May 20, 2026
11pm PDT May 20, 2026-6pm PDT May 27, 2026
 
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Additional Resources

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