Severe Weather and Heavy Rain from the Ohio Valley to the Mid-Atlantic; Heat Persists in the South-Central U.S.

Widespread strong thunderstorms with damaging winds and locally heavy rain are expected across portions of the Ohio Valley into southern Mid-Atlantic and Carolinas. Rounds of strong thunderstorms are expected to develop across the northern and central Plains. Sweltering heat remains most persistent across the South-Central Plains and Lower/Middle Mississippi Valley through next week. Read More >

Current conditions at

BLACK ROCK (OKFO3)

Lat: 43.52831°NLon: 121.81601°WElev: 4891.0ft.

NA

40°F

4°C

Humidity 98%
Wind Speed SW 1 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Last update 06 Sep 01:15 AM PDT
Extended Forecast for

Cascade Summit OR

  • Overnight

    Overnight: Showers.  Snow level 8000 feet. Low around 40. East southeast wind 5 to 7 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 40 °F

    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm, mainly before 5pm, then a chance of showers and thunderstorms after 5pm.  Snow level 7800 feet. High near 50. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon.  Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 50 °F

    Showers
    Likely then
    Showers

  • Sunday Night

    Sunday Night: A 40 percent chance of showers, mainly before 8pm.  Snow level 7900 feet. Mostly cloudy, with a low around 39. West northwest wind 5 to 8 mph.

    Low: 39 °F

    Chance
    Showers then
    Mostly Cloudy

  • Labor Day

    Labor Day: Partly sunny, then gradually becoming sunny, with a high near 60. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 60 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 40. West northwest wind 5 to 8 mph becoming calm.

    Low: 40 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Overnight
Showers. Snow level 8000 feet. Low around 40. East southeast wind 5 to 7 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Showers and possibly a thunderstorm, mainly before 5pm, then a chance of showers and thunderstorms after 5pm. Snow level 7800 feet. High near 50. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A 40 percent chance of showers, mainly before 8pm. Snow level 7900 feet. Mostly cloudy, with a low around 39. West northwest wind 5 to 8 mph.
Labor Day
Partly sunny, then gradually becoming sunny, with a high near 60. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Monday Night
Mostly clear, with a low around 40. West northwest wind 5 to 8 mph becoming calm.
Tuesday
Sunny, with a high near 70.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 50.
Thursday
Sunny, with a high near 76.
Thursday Night
Mostly clear, with a low around 49.
Friday
Mostly sunny, with a high near 68.
Friday Night
A slight chance of rain. Partly cloudy, with a low around 43.
Saturday
A slight chance of rain. Mostly sunny, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
Cascade Summit OR
 43.58°N 122.05°W (Elev. 5030 ft)
12:01 am PDT Sep 6, 2026
1am PDT Sep 6, 2026-6pm PDT Sep 12, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database