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

Hermiston, Hermiston Municipal Airport (KHRI)

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

Clear

80°F

27°C

Humidity 23%
Wind Speed NNW 11 MPH
Barometer 29.6 in (1002.37 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 25 May 01:53 PM PDT
Extended Forecast for

Umatilla OR

  • Memorial Day

    Memorial Day: Mostly cloudy, with a high near 84. West wind 9 to 17 mph, with gusts as high as 25 mph.

    High: 84 °F

    Mostly Cloudy

  • Tonight

    Tonight: Showers, mainly before 2am. Low around 45. West wind 16 to 21 mph becoming south 8 to 13 mph after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 45 °F

    Showers

  • Tuesday

    Tuesday: A 20 percent chance of showers before 11am. Cloudy, with a high near 66. Southwest wind 5 to 8 mph becoming east in the afternoon.

    High: 66 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers, mainly after 11pm. Cloudy, with a low around 47. Southeast wind around 5 mph becoming light and variable in the evening.

    Low: 47 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 79. Southwest wind 3 to 5 mph.

    High: 79 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers after 11am. Mostly sunny, with a high near 86.

    High: 86 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 53. Chance of precipitation is 50%.

    Low: 53 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A 40 percent chance of showers. Partly sunny, with a high near 74.

    High: 74 °F

    Chance
    Showers

Detailed Forecast

Memorial Day
Mostly cloudy, with a high near 84. West wind 9 to 17 mph, with gusts as high as 25 mph.
Tonight
Showers, mainly before 2am. Low around 45. West wind 16 to 21 mph becoming south 8 to 13 mph after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
A 20 percent chance of showers before 11am. Cloudy, with a high near 66. Southwest wind 5 to 8 mph becoming east in the afternoon.
Tuesday Night
A 40 percent chance of showers, mainly after 11pm. Cloudy, with a low around 47. Southeast wind around 5 mph becoming light and variable in the evening.
Wednesday
Mostly sunny, with a high near 79. Southwest wind 3 to 5 mph.
Wednesday Night
Partly cloudy, with a low around 52.
Thursday
A 20 percent chance of showers after 11am. Mostly sunny, with a high near 86.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 53. Chance of precipitation is 50%.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 74.
Friday Night
A slight chance of showers before 11pm. Mostly cloudy, with a low around 46. Breezy.
Saturday
Sunny, with a high near 74.
Saturday Night
A slight chance of showers. Mostly clear, with a low around 45.
Sunday
Mostly sunny, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Umatilla OR
 45.91°N 119.33°W (Elev. 400 ft)
Last Update:
11:46 am PDT May 25, 2026
Forecast Valid:
2pm PDT May 25, 2026-6pm PDT May 31, 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