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

Areas of Excessive Rainfall, Severe Thunderstorms, and Extreme Heat

Heavy to excessive rainfall is expected through tonight across portions of the central Plains. Areas of intense rainfall amounts could support increasing flooding concerns. Scattered severe thunderstorms are possible across parts of the central/southern Plains today and tonight, with large hail and damaging winds the main threats. Areas of extreme heat will impact parts of the West this week. Read More >

Hazardous Weather Conditions

Current conditions at

Hermiston, Hermiston Municipal Airport (KHRI)

Lat: 45.82583°NLon: 119.26111°WElev: 636.0ft.

Clear

84°F

29°C

Humidity 33%
Wind Speed SW 4 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 10 Aug 08:53 PM PDT
Extended Forecast for

Hermiston OR

Extreme Heat Warning August 10, 09:14pm until August 12, 10:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 10, 09:14pm until August 12, 10:00pm

    NOW until 10:00pm Tue

    Extreme Heat Warning

  • Tonight

    Low: 66 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 102. Light and variable wind becoming northwest around 6 mph in the afternoon.

    High: 102 °F

    Hot

  • Monday Night

    Monday Night: Clear, with a low around 66. North wind around 6 mph becoming light and variable after midnight.

    Low: 66 °F

    Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 102. West wind 3 to 7 mph.

    High: 102 °F

    Hot

  • Tuesday Night

    Tuesday Night: Clear, with a low around 72. Southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 72 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 61. Breezy.

    Low: 61 °F

    Clear and
    Breezy then
    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 66. South wind 3 to 5 mph.
Monday
Sunny and hot, with a high near 102. Light and variable wind becoming northwest around 6 mph in the afternoon.
Monday Night
Clear, with a low around 66. North wind around 6 mph becoming light and variable after midnight.
Tuesday
Sunny and hot, with a high near 102. West wind 3 to 7 mph.
Tuesday Night
Clear, with a low around 72. Southwest wind around 10 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 95.
Wednesday Night
Clear, with a low around 61. Breezy.
Thursday
Sunny, with a high near 87.
Thursday Night
Mostly clear, with a low around 60.
Friday
Mostly sunny, with a high near 85.
Friday Night
Partly cloudy, with a low around 61.
Saturday
Mostly sunny, with a high near 87.
Saturday Night
Partly cloudy, with a low around 61.
Sunday
Mostly sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hermiston OR
 45.83°N 119.28°W (Elev. 499 ft)
Last Update:
4:15 pm PDT Aug 10, 2025
Forecast Valid:
9pm PDT Aug 10, 2025-6pm PDT Aug 17, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation