Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Emigrant Gap, Blue Canyon Nyack Airport (KBLU)

Lat: 39.27611°NLon: 120.70806°WElev: 5282.0ft.

Clear

68°F

20°C

Humidity 34%
Wind Speed ENE 4 MPH
Barometer 30.24 in (1024.04 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 18 Aug 10:35 PM PDT
Extended Forecast for

Donner Summit CA

  • Tonight

    Tonight: Partly cloudy, with a low around 51. Calm wind.

    Low: 51 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 82. Calm wind becoming west southwest 5 to 7 mph in the morning. Winds could gust as high as 21 mph.

    High: 82 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 50. West southwest wind around 6 mph becoming calm  in the evening. Winds could gust as high as 20 mph.

    Low: 50 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 81. Calm wind becoming southwest 5 to 7 mph in the afternoon. Winds could gust as high as 21 mph.

    High: 81 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 51. West southwest wind 5 to 7 mph becoming calm  in the evening. Winds could gust as high as 21 mph.

    Low: 51 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 51. Calm wind.
Wednesday
Sunny, with a high near 82. Calm wind becoming west southwest 5 to 7 mph in the morning. Winds could gust as high as 21 mph.
Wednesday Night
Partly cloudy, with a low around 50. West southwest wind around 6 mph becoming calm in the evening. Winds could gust as high as 20 mph.
Thursday
Mostly sunny, with a high near 81. Calm wind becoming southwest 5 to 7 mph in the afternoon. Winds could gust as high as 21 mph.
Thursday Night
Mostly cloudy, with a low around 51. West southwest wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 21 mph.
Friday
Mostly sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 49.
Saturday
Sunny, with a high near 75.
Saturday Night
Mostly clear, with a low around 47.
Sunday
Sunny, with a high near 77.
Sunday Night
Mostly clear, with a low around 48.
Monday
Sunny, with a high near 76.
Monday Night
Mostly clear, with a low around 47.
Tuesday
Sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
Donner Summit CA
 39.33°N 120.4°W (Elev. 6394 ft)
2:00 pm PDT Aug 18, 2026
10pm PDT Aug 18, 2026-6pm PDT Aug 25, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database