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 >

Hazardous Weather Conditions

Current conditions at

Hermiston, Hermiston Municipal Airport (KHRI)

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

Rain

47°F

8°C

Humidity 86%
Wind Speed WNW 10 MPH
Barometer 30.15 in (1021.0 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 21 Mar 07:53 AM PDT
Extended Forecast for

3 Miles SSW Alderdale WA

  • Today

    Today: Sunny, with a high near 60. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 60 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 34. West wind 7 to 14 mph, with gusts as high as 20 mph.

    Low: 34 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 58. West wind 5 to 7 mph.

    High: 58 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 37. East wind around 6 mph becoming northwest after midnight.

    Low: 37 °F

    Partly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 60. Light and variable wind becoming south around 6 mph in the afternoon.

    High: 60 °F

    Mostly Cloudy

  • Monday Night

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

    Low: 45 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Rain likely. Mostly cloudy, with a high near 60. Chance of precipitation is 60%.

    High: 60 °F

    Rain Likely

  • Tuesday Night

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

    Low: 41 °F

    Chance Rain

  • Wednesday

    Wednesday: A 20 percent chance of rain. Mostly sunny, with a high near 60.

    High: 60 °F

    Slight Chance
    Rain

Detailed Forecast

Today
Sunny, with a high near 60. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 34. West wind 7 to 14 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 58. West wind 5 to 7 mph.
Sunday Night
Partly cloudy, with a low around 37. East wind around 6 mph becoming northwest after midnight.
Monday
Mostly cloudy, with a high near 60. Light and variable wind becoming south around 6 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 45.
Tuesday
Rain likely. Mostly cloudy, with a high near 60. Chance of precipitation is 60%.
Tuesday Night
A 30 percent chance of rain, mainly before 11pm. Mostly cloudy, with a low around 41.
Wednesday
A 20 percent chance of rain. Mostly sunny, with a high near 60.
Wednesday Night
Mostly clear, with a low around 35.
Thursday
Sunny, with a high near 55.
Thursday Night
Mostly clear, with a low around 34.
Friday
Sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Alderdale WA
 45.84°N 119.93°W (Elev. 482 ft)
Last Update:
4:20 am PDT Mar 21, 2026
Forecast Valid:
8am 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