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

Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

Hermiston, Hermiston Municipal Airport (KHRI)

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

Clear

45°F

7°C

Humidity 81%
Wind Speed SE 3 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 20 Mar 06:15 AM PDT
Extended Forecast for

Hermiston OR

  • Today

    Today: Increasing clouds, with a high near 76. South wind 6 to 13 mph becoming west in the afternoon. Winds could gust as high as 21 mph.

    High: 76 °F

    Increasing
    Clouds

  • Tonight

    Tonight: A 30 percent chance of rain after 2am. Cloudy, with a low around 50. Southwest wind 8 to 11 mph, with gusts as high as 21 mph.

    Low: 50 °F

    Cloudy then
    Chance Rain

  • Saturday

    Saturday: A 20 percent chance of rain before 11am. Cloudy through mid morning, then gradual clearing, with a high near 62. West wind 8 to 11 mph, with gusts as high as 18 mph.

    High: 62 °F

    Slight Chance
    Rain then
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 34. Southwest wind 6 to 11 mph, with gusts as high as 18 mph.

    Low: 34 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 60. West wind around 6 mph.

    High: 60 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 60.

    High: 60 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of rain. Mostly cloudy, with a high near 65.

    High: 65 °F

    Chance Rain

Detailed Forecast

Today
Increasing clouds, with a high near 76. South wind 6 to 13 mph becoming west in the afternoon. Winds could gust as high as 21 mph.
Tonight
A 30 percent chance of rain after 2am. Cloudy, with a low around 50. Southwest wind 8 to 11 mph, with gusts as high as 21 mph.
Saturday
A 20 percent chance of rain before 11am. Cloudy through mid morning, then gradual clearing, with a high near 62. West wind 8 to 11 mph, with gusts as high as 18 mph.
Saturday Night
Mostly clear, with a low around 34. Southwest wind 6 to 11 mph, with gusts as high as 18 mph.
Sunday
Mostly sunny, with a high near 60. West wind around 6 mph.
Sunday Night
Mostly cloudy, with a low around 38.
Monday
Mostly cloudy, with a high near 60.
Monday Night
Mostly cloudy, with a low around 43.
Tuesday
A 30 percent chance of rain. Mostly cloudy, with a high near 65.
Tuesday Night
A chance of rain before 11pm. Mostly cloudy, with a low around 43.
Wednesday
A slight chance of rain. Mostly sunny, with a high near 59.
Wednesday Night
Mostly clear, with a low around 34.
Thursday
Sunny, with a high near 58.
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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:
4:20 am PDT Mar 20, 2026
Forecast Valid:
6am PDT Mar 20, 2026-6pm PDT Mar 26, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation