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

47°F

8°C

Humidity 79%
Wind Speed NNE 4 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 20 Mar 05:53 AM PDT
Extended Forecast for

8 Miles E Umatilla OR

  • Today

    Today: Increasing clouds, with a high near 75. South wind 6 to 14 mph becoming west in the afternoon. Winds could gust as high as 21 mph.

    High: 75 °F

    Increasing
    Clouds

  • Tonight

    Tonight: A 30 percent chance of rain after 2am. Cloudy, with a low around 50. Southwest wind 7 to 13 mph, with gusts as high as 20 mph.

    Low: 50 °F

    Cloudy then
    Chance Rain

  • Saturday

    Saturday: A 20 percent chance of rain before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 62. Southwest wind 7 to 11 mph.

    High: 62 °F

    Slight Chance
    Rain then
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 35. Southwest wind 6 to 11 mph.

    Low: 35 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 59. West wind 5 to 7 mph.

    High: 59 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 39.

    Low: 39 °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 44.

    Low: 44 °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 75. South wind 6 to 14 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 7 to 13 mph, with gusts as high as 20 mph.
Saturday
A 20 percent chance of rain before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 62. Southwest wind 7 to 11 mph.
Saturday Night
Mostly clear, with a low around 35. Southwest wind 6 to 11 mph.
Sunday
Mostly sunny, with a high near 59. West wind 5 to 7 mph.
Sunday Night
Mostly cloudy, with a low around 39.
Monday
Mostly cloudy, with a high near 60.
Monday Night
Mostly cloudy, with a low around 44.
Tuesday
A 30 percent chance of rain. Mostly cloudy, with a high near 65.
Tuesday Night
A chance of rain, mainly before 11pm. Mostly cloudy, with a low around 44.
Wednesday
A slight chance of rain. Mostly sunny, with a high near 59.
Wednesday Night
Mostly clear, with a low around 35.
Thursday
Sunny, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles E Umatilla OR
 45.92°N 119.15°W (Elev. 404 ft)
Last Update:
4:20 am PDT Mar 20, 2026
Forecast Valid:
6am PDT Mar 20, 2026-6pm PDT Mar 26, 2026
 
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