Autumn Temperatures for Eastern Third of the Country; Developing Offshore Coastal Storm

Cooler and less humid conditions for most of the eastern third of the nation as high pressure dominates the weather pattern. Otherwise, rather tranquil weather for most of the nation for the end of the weekend into the start of this week. We continue to monitor a developing coastal storm offshore of the Carolinas; Coastal flooding and beach erosion possible along portions of the Mid-Atlantic. Read More >

Current conditions at

Hermiston, Hermiston Municipal Airport (KHRI)

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

Clear

48°F

9°C

Humidity 66%
Wind Speed N 0 MPH
Barometer 30.16 in (1021.34 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 18 Oct 09:30 AM PDT
Extended Forecast for

Umatilla OR

  • Today

    Today: Sunny, with a high near 66. Calm wind becoming northeast around 6 mph in the afternoon.

    High: 66 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 40. Light and variable wind.

    Low: 40 °F

    Increasing
    Clouds

  • Monday

    Monday: Cloudy, with a high near 63. Calm wind.

    High: 63 °F

    Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 38. Calm wind.

    Low: 38 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 67. Calm wind becoming north around 5 mph in the afternoon.

    High: 67 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 38 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers.  Mostly sunny, with a high near 66.

    High: 66 °F

    Slight Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 66. Calm wind becoming northeast around 6 mph in the afternoon.
Tonight
Increasing clouds, with a low around 40. Light and variable wind.
Monday
Cloudy, with a high near 63. Calm wind.
Monday Night
Mostly cloudy, with a low around 38. Calm wind.
Tuesday
Mostly sunny, with a high near 67. Calm wind becoming north around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 38.
Wednesday
Mostly sunny, with a high near 67.
Wednesday Night
Partly cloudy, with a low around 41.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 66.
Thursday Night
A slight chance of showers before 11pm. Partly cloudy, with a low around 40.
Friday
Sunny, with a high near 62.
Friday Night
Partly cloudy, with a low around 35.
Saturday
Mostly sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
Umatilla OR
 45.91°N 119.36°W (Elev. 400 ft)
4:01 am PDT Oct 18, 2026
9am PDT Oct 18, 2026-6pm PDT Oct 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database