National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Thunderstorms and Heavy Rain Across the Southern and Eastern US; Heat and Fire Weather Concerns in the West

Showers and thunderstorms are expected across the southern and eastern US this week, with heavy rain and localized flooding, particularly near the Gulf Coast. Monsoonal moisture will bring rain and potential flooding to parts of the Southwest. Heat and fire weather threats will continue to impact the West. Read More >

Hazardous Weather Conditions

Current conditions at

Hermiston, Hermiston Municipal Airport (KHRI)

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

Clear

93°F

34°C

Humidity 21%
Wind Speed ENE 4 MPH
Barometer 29.81 in (1009.48 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 30 Jun 07:30 PM PDT
Extended Forecast for

Hermiston OR

Heat Advisory June 30, 07:52pm until July 1, 09:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory June 30, 07:52pm until July 1, 09:00pm

    NOW until 9:00pm Tue

    Heat Advisory

  • Tonight

    Low: 64 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 102. Light and variable wind becoming northwest around 6 mph in the afternoon.

    High: 102 °F

    Hot

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 70. Northwest wind 6 to 10 mph becoming southwest in the evening. Winds could gust as high as 18 mph.

    Low: 70 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 94. Southwest wind 9 to 15 mph, with gusts as high as 24 mph.

    High: 94 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 62. Southwest wind 11 to 17 mph, with gusts as high as 28 mph.

    Low: 62 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Independence Day

    Independence Day: Sunny, with a high near 89.

    High: 89 °F

    Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 64. North wind around 6 mph becoming light and variable in the evening.
Tuesday
Sunny and hot, with a high near 102. Light and variable wind becoming northwest around 6 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 70. Northwest wind 6 to 10 mph becoming southwest in the evening. Winds could gust as high as 18 mph.
Wednesday
Mostly sunny, with a high near 94. Southwest wind 9 to 15 mph, with gusts as high as 24 mph.
Wednesday Night
Mostly clear, with a low around 62. Southwest wind 11 to 17 mph, with gusts as high as 28 mph.
Thursday
Sunny, with a high near 89.
Thursday Night
Partly cloudy, with a low around 59.
Independence Day
Sunny, with a high near 89.
Friday Night
Mostly clear, with a low around 60.
Saturday
Sunny, with a high near 90.
Saturday Night
Mostly clear, with a low around 60.
Sunday
Sunny, with a high near 93.
Sunday Night
Mostly clear, with a low around 60.
Monday
Sunny, with a high near 95.
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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:
4:15 pm PDT Jun 30, 2025
Forecast Valid:
7pm PDT Jun 30, 2025-6pm PDT Jul 7, 2025
 
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