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.

Clear

32°F

0°C

Humidity 86%
Wind Speed N 0 MPH
Barometer 30.35 in (1027.77 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 22 Mar 03:10 AM PDT
Extended Forecast for

Umatilla OR

  • Overnight

    Overnight: Patchy frost. Otherwise, mostly clear, with a low around 34. Light south wind.

    Low: 34 °F

    Patchy Frost

  • Sunday

    Sunday: Areas of frost before 11am. Otherwise, mostly sunny, with a high near 60. Light and variable wind.

    High: 60 °F

    Areas Frost
    then Partly
    Sunny

  • Sunday Night

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

    Low: 37 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 63. Light and variable wind.

    High: 63 °F

    Partly Sunny

  • Monday Night

    Monday Night: Cloudy, with a low around 46. Light southwest wind.

    Low: 46 °F

    Cloudy

  • Tuesday

    Tuesday: A 50 percent chance of rain. Mostly cloudy, with a high near 61.

    High: 61 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain before 11pm. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance Rain
    then Mostly
    Cloudy

  • 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

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy frost. Otherwise, mostly clear, with a low around 34. Light south wind.
Sunday
Areas of frost before 11am. Otherwise, mostly sunny, with a high near 60. Light and variable wind.
Sunday Night
Mostly cloudy, with a low around 37. Light and variable wind.
Monday
Partly sunny, with a high near 63. Light and variable wind.
Monday Night
Cloudy, with a low around 46. Light southwest wind.
Tuesday
A 50 percent chance of rain. Mostly cloudy, with a high near 61.
Tuesday Night
A 30 percent chance of rain before 11pm. Mostly cloudy, with a low around 43.
Wednesday
A 20 percent chance of rain before 11am. Mostly sunny, with a high near 61.
Wednesday Night
Mostly clear, with a low around 34.
Thursday
Sunny, with a high near 57.
Thursday Night
Mostly clear, with a low around 33.
Friday
Sunny, with a high near 61.
Friday Night
Partly cloudy, with a low around 36.
Saturday
Mostly sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Umatilla OR
 45.91°N 119.33°W (Elev. 400 ft)
Last Update:
2:30 am PDT Mar 22, 2026
Forecast Valid:
3am PDT Mar 22, 2026-6pm PDT Mar 28, 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