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

Heavy Rainfall in Southern California and in the Southern Plains; Heavy Snow in the Sierra Nevada Mountains and Rockies

A Pacific storm will bring coastal/lower elevation heavy to excessive rainfall to southern California and the Southern Rockies today, with localized flash flooding possible, especially near recent burn scars. Heavy snow is forecast over parts of the Sierra Nevada Mountains today and over the Northern Rockies on Wednesday. Several inches of snowfall accumulation is possible. Read More >

Current conditions at

Hermiston, Hermiston Municipal Airport (KHRI)

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

Partly Cloudy

45°F

7°C

Humidity 61%
Wind Speed W 4 MPH
Barometer 30.1 in (1019.3 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 14 Oct 10:15 AM PDT
Extended Forecast for

Umatilla OR

  • Today

    Today: Sunny, with a high near 59. Calm wind becoming east around 6 mph in the afternoon.

    High: 59 °F

    Sunny

  • Tonight

    Tonight: Patchy frost after 2am. Otherwise, mostly clear, with a low around 34. Southeast wind around 5 mph becoming calm in the evening.

    Low: 34 °F

    Mostly Clear
    then Patchy
    Frost

  • Wednesday

    Wednesday: Areas of frost before 11am. Otherwise, sunny, with a high near 61. Calm wind becoming west around 5 mph in the afternoon.

    High: 61 °F

    Areas Frost
    then Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 34. South wind 3 to 5 mph.

    Low: 34 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 65. Light south wind becoming southwest 5 to 9 mph in the morning.

    High: 65 °F

    Sunny

  • Thursday Night

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

    Low: 41 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 59. Calm wind becoming east around 6 mph in the afternoon.
Tonight
Patchy frost after 2am. Otherwise, mostly clear, with a low around 34. Southeast wind around 5 mph becoming calm in the evening.
Wednesday
Areas of frost before 11am. Otherwise, sunny, with a high near 61. Calm wind becoming west around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 34. South wind 3 to 5 mph.
Thursday
Sunny, with a high near 65. Light south wind becoming southwest 5 to 9 mph in the morning.
Thursday Night
Partly cloudy, with a low around 41.
Friday
Sunny, with a high near 67.
Friday Night
Mostly clear, with a low around 39.
Saturday
Mostly sunny, with a high near 66.
Saturday Night
A chance of showers, mainly after 11pm. Mostly cloudy, with a low around 46.
Sunday
Showers likely. Partly sunny, with a high near 61.
Sunday Night
A chance of showers. Partly cloudy, with a low around 41.
Monday
A slight chance of showers. Mostly sunny, with a high near 60.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Umatilla OR
 45.92°N 119.3°W (Elev. 400 ft)
Last Update:
10:15 am PDT Oct 14, 2025
Forecast Valid:
10am PDT Oct 14, 2025-6pm PDT Oct 20, 2025
 
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Additional Resources

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Chance of Precipitation