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

Heavy Rainfall Threat Continues in the Southwest on Monday; Record Warmth in the Plains and Midwest

Remnant moisture from Tropical Storm Rachel will persist over portions of the Great Basin and Southwest on Monday, bringing a potential heavy to excessive rainfall risk. Well above average and potentially record breaking temperatures will develop across the Plains and Midwest early this week, spreading into the Lower Mississippi Valley and Southeast midweek. Read More >

Hazardous Weather Conditions

Current conditions at

Hermiston, Hermiston Municipal Airport (KHRI)

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

Clear

37°F

3°C

Humidity 69%
Wind Speed ESE 4 MPH
Barometer 30.1 in (1019.3 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 12 Oct 11:15 PM PDT
Extended Forecast for

Umatilla OR

Freeze Warning until October 13, 09:00am
Click here for hazard details and duration
Freeze Warning
  •  
    Freeze Warning until October 13, 09:00am

    NOW until 9:00am Tue

    Freeze Warning

  • Tonight

    Low: 32 °F

    Frost

  • Tuesday

    Tuesday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 66. Light and variable wind.

    High: 66 °F

    Frost then
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 38. Calm wind.

    Low: 38 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 70. Calm wind.

    High: 70 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 41. Calm wind.

    Low: 41 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 42.

    Low: 42 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

Detailed Forecast

Tonight
Widespread frost after 2am. Otherwise, clear, with a low around 32. Calm wind.
Tuesday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 66. Light and variable wind.
Tuesday Night
Partly cloudy, with a low around 38. Calm wind.
Wednesday
Sunny, with a high near 70. Calm wind.
Wednesday Night
Mostly clear, with a low around 41. Calm wind.
Thursday
Sunny, with a high near 72.
Thursday Night
Clear, with a low around 42.
Friday
Sunny, with a high near 75.
Friday Night
Partly cloudy, with a low around 45.
Saturday
Mostly sunny, with a high near 73.
Saturday Night
Mostly clear, with a low around 41.
Sunday
Sunny, with a high near 69.
Sunday Night
Mostly cloudy, with a low around 42.
Monday
A slight chance of showers. Partly sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Umatilla OR
 45.94°N 119.31°W (Elev. 400 ft)
Last Update:
11:01 pm PDT Oct 12, 2026
Forecast Valid:
11pm PDT Oct 12, 2026-6pm PDT Oct 19, 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