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

Severe Thunderstorms Likely in the Central U.S.; Flooding Possible for portions of Oklahoma/Texas/Arkansas and the Marianas.

Severe thunderstorms are likely from the southern Plains to the Midwest through Friday. Large hail, damaging winds, and tornadoes are all possible. An Enhanced (level 3 of 5) risk is in effect. Flash flooding is possible across portions of Oklahoma, Texas, and Arkansas on Friday. A Slight (level 2 of 4) risk is in effect. Flooding rain may impact Guam and the Marianas through next week. Read More >

Current conditions at

Hermiston, Hermiston Municipal Airport (KHRI)

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

Mostly Cloudy

55°F

13°C

Humidity 47%
Wind Speed WSW 21 MPH
Barometer 30.18 in (1022.01 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 05 Mar 04:15 PM PST
Extended Forecast for

Umatilla OR

  • Tonight

    Tonight: Increasing clouds, with a low around 38. South wind 6 to 10 mph.

    Low: 38 °F

    Increasing
    Clouds

  • Friday

    Friday: A 40 percent chance of rain before 10am. Mostly cloudy, with a high near 58. Southwest wind 8 to 13 mph, with gusts as high as 20 mph.

    High: 58 °F

    Chance Rain
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: A 20 percent chance of rain. Mostly cloudy, with a low around 46. Southwest wind around 9 mph.

    Low: 46 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: Partly sunny, with a high near 64. Southwest wind 10 to 16 mph, with gusts as high as 24 mph.

    High: 64 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 47. Southwest wind around 10 mph.

    Low: 47 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 64. Breezy.

    High: 64 °F

    Partly Sunny
    then Partly
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 38. South wind 6 to 10 mph.
Friday
A 40 percent chance of rain before 10am. Mostly cloudy, with a high near 58. Southwest wind 8 to 13 mph, with gusts as high as 20 mph.
Friday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 46. Southwest wind around 9 mph.
Saturday
Partly sunny, with a high near 64. Southwest wind 10 to 16 mph, with gusts as high as 24 mph.
Saturday Night
Mostly cloudy, with a low around 47. Southwest wind around 10 mph.
Sunday
Partly sunny, with a high near 64. Breezy.
Sunday Night
Mostly cloudy, with a low around 41.
Monday
Mostly sunny, with a high near 55.
Monday Night
Partly cloudy, with a low around 33.
Tuesday
A slight chance of rain after 4pm. Snow level 500 feet rising to 1500 feet in the afternoon. Mostly sunny, with a high near 50.
Tuesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 34.
Wednesday
A chance of rain and snow. Mostly cloudy, with a high near 55.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 37.
Thursday
A chance of rain and snow. Partly sunny, with a high near 56.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Umatilla OR
 45.92°N 119.3°W (Elev. 400 ft)
Last Update:
4:07 pm PST Mar 5, 2026
Forecast Valid:
4pm PST Mar 5, 2026-6pm PDT Mar 12, 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