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.

Partly Cloudy

50°F

10°C

Humidity 81%
Wind Speed S 9 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 21 Mar 09:35 AM PDT
Extended Forecast for

Hermiston OR

  • Today

    Today: Mostly cloudy early, then gradual clearing, with a high near 62. West wind 9 to 11 mph, with gusts as high as 18 mph.

    High: 62 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 32. South wind 6 to 10 mph, with gusts as high as 18 mph.

    Low: 32 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 60. South wind around 5 mph becoming light and variable.

    High: 60 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 33. Light and variable wind.

    Low: 33 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 61. Calm wind.

    High: 61 °F

    Partly Sunny

  • Monday Night

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

    Low: 43 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Rain likely, mainly after 11am. Mostly cloudy, with a high near 63. Chance of precipitation is 60%.

    High: 63 °F

    Rain Likely

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain before 11pm. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance Rain
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of rain before 11am. Mostly sunny, with a high near 63.

    High: 63 °F

    Slight Chance
    Rain then
    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy early, then gradual clearing, with a high near 62. West wind 9 to 11 mph, with gusts as high as 18 mph.
Tonight
Mostly clear, with a low around 32. South wind 6 to 10 mph, with gusts as high as 18 mph.
Sunday
Mostly sunny, with a high near 60. South wind around 5 mph becoming light and variable.
Sunday Night
Partly cloudy, with a low around 33. Light and variable wind.
Monday
Partly sunny, with a high near 61. Calm wind.
Monday Night
Mostly cloudy, with a low around 43.
Tuesday
Rain likely, mainly after 11am. Mostly cloudy, with a high near 63. Chance of precipitation is 60%.
Tuesday Night
A 30 percent chance of rain before 11pm. Mostly cloudy, with a low around 41.
Wednesday
A 20 percent chance of rain before 11am. Mostly sunny, with a high near 63.
Wednesday Night
Partly cloudy, with a low around 36.
Thursday
Sunny, with a high near 58.
Thursday Night
Partly cloudy, with a low around 32.
Friday
Sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hermiston OR
 45.84°N 119.25°W (Elev. 548 ft)
Last Update:
9:31 am PDT Mar 21, 2026
Forecast Valid:
9am PDT Mar 21, 2026-6pm PDT Mar 27, 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