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.

Clear

73°F

23°C

Humidity 31%
Wind Speed W 18 MPH
Barometer 30.04 in (1017.27 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 20 Mar 12:00 PM PDT
Extended Forecast for

4 Miles ESE Alderdale WA

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 73. West wind 15 to 17 mph, with gusts as high as 25 mph.

    High: 73 °F

    Mostly Cloudy

  • Tonight

    Tonight: A 20 percent chance of rain after 11pm. Cloudy, with a low around 52. Southwest wind 9 to 16 mph, with gusts as high as 24 mph.

    Low: 52 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: Cloudy through mid morning, then gradual clearing, with a high near 60. West wind 9 to 13 mph, with gusts as high as 18 mph.

    High: 60 °F

    Gradual
    Clearing

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 36. West wind 7 to 14 mph, with gusts as high as 20 mph.

    Low: 36 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 59. Southwest wind around 7 mph.

    High: 59 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 39.

    Low: 39 °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 44.

    Low: 44 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of rain. Mostly cloudy, with a high near 64.

    High: 64 °F

    Chance Rain

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 73. West wind 15 to 17 mph, with gusts as high as 25 mph.
Tonight
A 20 percent chance of rain after 11pm. Cloudy, with a low around 52. Southwest wind 9 to 16 mph, with gusts as high as 24 mph.
Saturday
Cloudy through mid morning, then gradual clearing, with a high near 60. West wind 9 to 13 mph, with gusts as high as 18 mph.
Saturday Night
Mostly clear, with a low around 36. West wind 7 to 14 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 59. Southwest wind around 7 mph.
Sunday Night
Mostly cloudy, with a low around 39.
Monday
Mostly cloudy, with a high near 60.
Monday Night
Mostly cloudy, with a low around 44.
Tuesday
A 40 percent chance of rain. Mostly cloudy, with a high near 64.
Tuesday Night
A chance of rain, mainly before 11pm. Mostly cloudy, with a low around 44.
Wednesday
A slight chance of rain. Mostly sunny, with a high near 56.
Wednesday Night
Mostly clear, with a low around 35.
Thursday
Sunny, with a high near 56.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Alderdale WA
 45.85°N 119.81°W (Elev. 335 ft)
Last Update:
10:32 am PDT Mar 20, 2026
Forecast Valid:
12pm PDT Mar 20, 2026-6pm PDT Mar 26, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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