Storms and Heavy Rainfall in the Plains and Southern Appalachians; Hazardous Heat in the South and Southeast

Severe thunderstorms with heavy rainfall will be possible across the southern Appalachians through this evening. Thunderstorms are also expected from the northern/central Plains into portions of the Midwest through Tuesday, and severe storms may produce large hail and damaging wind gusts. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

OR7 SB at Sumpter MP 25.07 (OD128)

Lat: 44.71702°NLon: 118.16314°WElev: 4245.0ft.

NA

84°F

29°C

Humidity 15%
Wind Speed WSW 1 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Heat Index81°F (27°C)
Last update 17 Aug 02:34 PM PDT
Extended Forecast for

Greenhorn OR

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 78. Light west wind.

    High: 78 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 10pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around 57. Light north northwest wind.

    Low: 57 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: Patchy smoke before 2pm. Sunny, with a high near 78. Calm wind becoming west around 6 mph in the afternoon.

    High: 78 °F

    Patchy Smoke

  • Tuesday Night

    Tuesday Night: Patchy smoke after 4am. Partly cloudy, with a low around 54. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 54 °F

    Mostly Clear
    then Patchy
    Smoke

  • Wednesday

    Wednesday: Sunny, with a high near 80. Light and variable wind.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 62.

    Low: 62 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 82.

    High: 82 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 78. Light west wind.
Tonight
A 20 percent chance of showers and thunderstorms before 10pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 57. Light north northwest wind.
Tuesday
Patchy smoke before 2pm. Sunny, with a high near 78. Calm wind becoming west around 6 mph in the afternoon.
Tuesday Night
Patchy smoke after 4am. Partly cloudy, with a low around 54. Northwest wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 80. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Sunny, with a high near 84.
Thursday Night
Mostly cloudy, with a low around 62.
Friday
Partly sunny, with a high near 82.
Friday Night
Mostly cloudy, with a low around 58.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 73.
Saturday Night
Mostly clear, with a low around 51.
Sunday
Sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
Greenhorn OR
 44.7°N 118.5°W (Elev. 6024 ft)
11:29 am PDT Aug 17, 2026
2pm PDT Aug 17, 2026-6pm PDT Aug 23, 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