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

Severe Thunderstorms and Heavy Rainfall for the Southwest; Heat Spreads Across the Center of the Nation

Moisture will continue to move into areas of the West. This will increase showers and thunderstorms coverage and intensity, with the risk of flash flooding and damaging wind gusts. Meanwhile, heat across the Southwest will expand into the center of the nation this weekend into early next week. Trends favor this heat will spread across the Ohio Valley, mid-Atlantic next week. Read More >

Current conditions at

Hermiston, Hermiston Municipal Airport (KHRI)

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

Clear

75°F

24°C

Humidity 27%
Wind Speed WSW 17 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 29 Aug 03:35 PM PDT
Extended Forecast for

Hermiston OR

  • Tonight

    Tonight: Mostly clear, with a low around 50. West wind 6 to 15 mph, with gusts as high as 26 mph.

    Low: 50 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 80. South wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph.

    High: 80 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 50. Light and variable wind.

    Low: 50 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 88. Calm wind becoming north around 6 mph in the afternoon.

    High: 88 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 57. North wind around 6 mph becoming calm in the evening.

    Low: 57 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 86.

    High: 86 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 55.

    Low: 55 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers after 11am. Partly sunny, with a high near 77.

    High: 77 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 53.

    Low: 53 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 50. West wind 6 to 15 mph, with gusts as high as 26 mph.
Sunday
Sunny, with a high near 80. South wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Mostly clear, with a low around 50. Light and variable wind.
Monday
Sunny, with a high near 88. Calm wind becoming north around 6 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 57. North wind around 6 mph becoming calm in the evening.
Tuesday
Partly sunny, with a high near 86.
Tuesday Night
A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 55.
Wednesday
A 30 percent chance of showers after 11am. Partly sunny, with a high near 77.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 53.
Thursday
A chance of showers. Partly sunny, with a high near 74.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 48.
Friday
A slight chance of showers. Mostly sunny, with a high near 75.
Friday Night
Partly cloudy, with a low around 50.
Saturday
A slight chance of showers. Mostly sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hermiston OR
 45.85°N 119.32°W (Elev. 459 ft)
Last Update:
3:01 pm PDT Aug 29, 2026
Forecast Valid:
3pm PDT Aug 29, 2026-6pm PDT Sep 5, 2026
 
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Additional Resources

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Chance of Precipitation