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

Heavy Rainfall for the Mid-Atlantic; Heat and Wildfire Concerns for the West

Slow moving showers and thunderstorms may result in flash flooding for portions of the mid-Atlantic region today into tonight. Meanwhile, excessive heat will continue to build across the West through Tuesday. Heat Advisories and Extreme Heat Warnings are in effect. Fire Weather concerns continue for the interior Northwest with dry and breezy conditions. Watching the tropics across the Southeast. Read More >

Hazardous Weather Conditions

Current conditions at

Hermiston, Hermiston Municipal Airport (KHRI)

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

Clear

99°F

37°C

Humidity 18%
Wind Speed WSW 18 MPH
Barometer 29.83 in (1010.16 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 14 Jul 02:20 PM PDT
Extended Forecast for

Hermiston OR

Heat Advisory July 14, 02:40pm until July 14, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 14, 02:40pm until July 14, 08:00pm

    NOW until 8:00pm Mon

    Heat Advisory

  • This Afternoon

    High: 99 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 64. West wind 15 to 20 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 32 mph.

    Low: 64 °F

    Mostly Clear

  • Tuesday

    Tuesday: Widespread haze after 11am. Sunny, with a high near 89. West wind 8 to 14 mph becoming north in the afternoon. Winds could gust as high as 24 mph.

    High: 89 °F

    Haze

  • Tuesday Night

    Tuesday Night: Widespread haze before 11pm. Mostly clear, with a low around 59. North wind 6 to 14 mph, with gusts as high as 24 mph.

    Low: 59 °F

    Haze then
    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 93. North wind around 6 mph.

    High: 93 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 63.

    Low: 63 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 98.

    High: 98 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 65.

    Low: 65 °F

    Clear

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 99. West wind around 18 mph, with gusts as high as 31 mph.
Tonight
Mostly clear, with a low around 64. West wind 15 to 20 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 32 mph.
Tuesday
Widespread haze after 11am. Sunny, with a high near 89. West wind 8 to 14 mph becoming north in the afternoon. Winds could gust as high as 24 mph.
Tuesday Night
Widespread haze before 11pm. Mostly clear, with a low around 59. North wind 6 to 14 mph, with gusts as high as 24 mph.
Wednesday
Sunny, with a high near 93. North wind around 6 mph.
Wednesday Night
Clear, with a low around 63.
Thursday
Sunny and hot, with a high near 98.
Thursday Night
Clear, with a low around 65.
Friday
Sunny and hot, with a high near 98.
Friday Night
Mostly clear, with a low around 67.
Saturday
Sunny, with a high near 93.
Saturday Night
Mostly clear, with a low around 61.
Sunday
Sunny, with a high near 89.
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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:
2:30 pm PDT Jul 14, 2025
Forecast Valid:
2pm PDT Jul 14, 2025-6pm PDT Jul 20, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

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Chance of Precipitation