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

58°F

14°C

Humidity 69%
Wind Speed SSW 12 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 20 Mar 10:53 PM PDT
Extended Forecast for

8 Miles E Umatilla OR

  • Tonight

    Tonight: A 40 percent chance of rain, mainly after 2am. Cloudy, with a low around 50. West wind around 7 mph.

    Low: 50 °F

    Chance Rain

  • Saturday

    Saturday: A 30 percent chance of rain before 8am. Cloudy through mid morning, then gradual clearing, with a high near 61. Southwest wind 7 to 11 mph.

    High: 61 °F

    Chance Rain
    then Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 34. Southwest wind 5 to 10 mph.

    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: Mostly cloudy, with a low around 37. Light and variable wind.

    Low: 37 °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 43.

    Low: 43 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of rain. Mostly cloudy, with a high near 62.

    High: 62 °F

    Slight Chance
    Rain

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Slight Chance
    Rain then
    Mostly Cloudy

Detailed Forecast

Tonight
A 40 percent chance of rain, mainly after 2am. Cloudy, with a low around 50. West wind around 7 mph.
Saturday
A 30 percent chance of rain before 8am. Cloudy through mid morning, then gradual clearing, with a high near 61. Southwest wind 7 to 11 mph.
Saturday Night
Mostly clear, with a low around 34. Southwest wind 5 to 10 mph.
Sunday
Mostly sunny, with a high near 59. Light and variable wind becoming southwest around 6 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 37. Light and variable wind.
Monday
Mostly cloudy, with a high near 60.
Monday Night
Mostly cloudy, with a low around 43.
Tuesday
A 20 percent chance of rain. Mostly cloudy, with a high near 62.
Tuesday Night
A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 43.
Wednesday
Partly sunny, with a high near 60.
Wednesday Night
Partly cloudy, with a low around 34.
Thursday
Sunny, with a high near 57.
Thursday Night
Mostly clear, with a low around 34.
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
 45.91°N 119.18°W (Elev. 400 ft)
Last Update:
10:15 pm PDT Mar 20, 2026
Forecast Valid:
11pm PDT Mar 20, 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