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.

Rain

46°F

8°C

Humidity 93%
Wind Speed SSE 5 MPH
Barometer 30.15 in (1021.0 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 21 Mar 08:20 AM PDT
Extended Forecast for

8 Miles E Umatilla OR

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 61. West wind 7 to 11 mph.

    High: 61 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly clear, with a low around 34. West wind 5 to 10 mph becoming south after midnight.

    Low: 34 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 59. Light and variable wind becoming southwest around 6 mph in the afternoon.

    High: 59 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 38. Northeast wind around 5 mph becoming calm in the evening.

    Low: 38 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 60. Calm wind becoming west around 5 mph in the afternoon.

    High: 60 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Rain likely, mainly after 11am. Mostly cloudy, with a high near 61. Chance of precipitation is 60%.

    High: 61 °F

    Rain Likely

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain, mainly before 11pm. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Chance Rain

  • Wednesday

    Wednesday: A 20 percent chance of rain before 11am. Mostly sunny, with a high near 61.

    High: 61 °F

    Slight Chance
    Rain then
    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 61. West wind 7 to 11 mph.
Tonight
Mostly clear, with a low around 34. West wind 5 to 10 mph becoming south after midnight.
Sunday
Mostly sunny, with a high near 59. Light and variable wind becoming southwest around 6 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 38. Northeast wind around 5 mph becoming calm in the evening.
Monday
Partly sunny, with a high near 60. Calm wind becoming west around 5 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 45.
Tuesday
Rain likely, mainly after 11am. Mostly cloudy, with a high near 61. Chance of precipitation is 60%.
Tuesday Night
A 30 percent chance of rain, mainly before 11pm. Mostly cloudy, with a low around 42.
Wednesday
A 20 percent chance of rain before 11am. Mostly sunny, with a high near 61.
Wednesday Night
Mostly clear, with a low around 35.
Thursday
Sunny, with a high near 57.
Thursday Night
Mostly clear, with a low around 35.
Friday
Sunny, with a high near 61.
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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 21, 2026
Forecast Valid:
8am PDT Mar 21, 2026-6pm PDT Mar 27, 2026
 
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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