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.

Overcast

56°F

13°C

Humidity 71%
Wind Speed ENE 4 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 21 Mar 01:53 AM PDT
Extended Forecast for

Hermiston OR

  • Overnight

    Overnight: Rain likely. Cloudy, with a low around 49. Southwest wind around 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 49 °F

    Rain Likely

  • Saturday

    Saturday: Rain likely before 8am. Cloudy through mid morning, then gradual clearing, with a high near 62. West wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 62 °F

    Rain Likely
    then Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 33. South wind 6 to 10 mph, with gusts as high as 18 mph.

    Low: 33 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 59. South wind around 5 mph becoming light and variable.

    High: 59 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 36. North wind around 5 mph becoming calm in the evening.

    Low: 36 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 44.

    Low: 44 °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 before 11pm. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance Rain
    then Mostly
    Cloudy

Detailed Forecast

Overnight
Rain likely. Cloudy, with a low around 49. Southwest wind around 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain likely before 8am. Cloudy through mid morning, then gradual clearing, with a high near 62. West wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Mostly clear, with a low around 33. South wind 6 to 10 mph, with gusts as high as 18 mph.
Sunday
Mostly sunny, with a high near 59. South wind around 5 mph becoming light and variable.
Sunday Night
Partly cloudy, with a low around 36. North wind around 5 mph becoming calm in the evening.
Monday
Partly sunny, with a high near 61.
Monday Night
Mostly cloudy, with a low around 44.
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 before 11pm. Mostly cloudy, with a low around 41.
Wednesday
A slight chance of rain before 11am. Mostly sunny, with a high near 61.
Wednesday Night
Partly cloudy, with a low around 35.
Thursday
Sunny, with a high near 57.
Thursday Night
Partly cloudy, 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:
Hermiston OR
 45.83°N 119.28°W (Elev. 499 ft)
Last Update:
2:07 am PDT Mar 21, 2026
Forecast Valid:
2am 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