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

Severe Weather and Heavy Rainfall in the Ohio Valley; Heat Continuing in the South and Southeast

Severe thunderstorms with damaging wind gusts will be possible from the mid-Mississippi Valley into parts of the Ohio Valley and central Appalachians tonight. Heavy rain associated with these storms may lead to considerable flash and urban flooding impacts across portions of the Ohio Valley. Mid-summer heat persists from the Central Plains to the Southeast. Read More >

Current conditions at

TUOLUMNE MEADOWS TUM (TUMC1)

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

NA

47°F

8°C

Humidity 70%
Wind Speed E 0 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Last update 12 Aug 01:00 AM PDT
Extended Forecast for

12 Miles W Conway Summit CA

  • Overnight

    Overnight: Increasing clouds, with a steady temperature around 47. South southwest wind around 10 mph.

    Low: 47 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms after 11am. Mostly cloudy, with a high near 57. Southwest wind 5 to 10 mph, with gusts as high as 15 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 57 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 8pm, then a chance of rain between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Increasing clouds, with a low around 41. South southwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 40%.

    Low: 41 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of rain, then showers likely and possibly a thunderstorm after 11am. Cloudy, then gradually becoming mostly sunny, with a high near 52. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 52 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 36. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 36 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 54. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 54 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 35. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 35 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 55. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 55 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 37. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 37 °F

    Mostly Clear

Detailed Forecast

Overnight
Increasing clouds, with a steady temperature around 47. South southwest wind around 10 mph.
Wednesday
A 50 percent chance of showers and thunderstorms after 11am. Mostly cloudy, with a high near 57. Southwest wind 5 to 10 mph, with gusts as high as 15 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms before 8pm, then a chance of rain between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Increasing clouds, with a low around 41. South southwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 40%.
Thursday
A chance of rain, then showers likely and possibly a thunderstorm after 11am. Cloudy, then gradually becoming mostly sunny, with a high near 52. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Mostly clear, with a low around 36. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Friday
Sunny, with a high near 54. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 35. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 55. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 37. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
Sunny, with a high near 57. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 39. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 57. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 39. West southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 55. 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:
12 Miles W Conway Summit CA
 38.1°N 119.39°W (Elev. 10997 ft)
Last Update:
12:56 am PDT Aug 12, 2026
Forecast Valid:
1am PDT Aug 12, 2026-6pm PDT Aug 18, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation