Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Current conditions at

Hermiston, Hermiston Municipal Airport (KHRI)

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

Fog

48°F

9°C

Humidity 100%
Wind Speed NNW 3 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 48°F (9°C)
Visibility 0.25 mi
Last update 09 Dec 09:15 PM PST
Extended Forecast for

8 Miles E Umatilla OR

Wind Advisory December 10, 06:00am until December 11, 07:00am
Click here for hazard details and duration
Wind Advisory
  • Tonight

    Tonight: Rain likely, mainly before 10pm.  Cloudy, with a temperature falling to near 48 by midnight, then rising to around 55 during the remainder of the night. Northeast wind 5 to 9 mph becoming southwest after midnight.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Rain Likely

  • Wednesday

    Wednesday: A 20 percent chance of rain before 10am.  Mostly cloudy, with a high near 65. Breezy, with a southwest wind 17 to 24 mph, with gusts as high as 44 mph.

    High: 65 °F

    Breezy.
    Slight Chance
    Rain then
    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 54. Southwest wind 17 to 20 mph, with gusts as high as 32 mph.

    Low: 54 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of rain.  Mostly cloudy, with a high near 62. Southwest wind 16 to 18 mph, with gusts as high as 25 mph.

    High: 62 °F

    Slight Chance
    Rain

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 49. Southwest wind 6 to 9 mph.

    Low: 49 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 56.

    High: 56 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Rain likely, mainly before 10pm. Cloudy, with a temperature falling to near 48 by midnight, then rising to around 55 during the remainder of the night. Northeast wind 5 to 9 mph becoming southwest after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A 20 percent chance of rain before 10am. Mostly cloudy, with a high near 65. Breezy, with a southwest wind 17 to 24 mph, with gusts as high as 44 mph.
Wednesday Night
Mostly cloudy, with a low around 54. Southwest wind 17 to 20 mph, with gusts as high as 32 mph.
Thursday
A 20 percent chance of rain. Mostly cloudy, with a high near 62. Southwest wind 16 to 18 mph, with gusts as high as 25 mph.
Thursday Night
Mostly cloudy, with a low around 49. Southwest wind 6 to 9 mph.
Friday
Partly sunny, with a high near 61.
Friday Night
Mostly cloudy, with a low around 44.
Saturday
Partly sunny, with a high near 56.
Saturday Night
Mostly cloudy, with a low around 42.
Sunday
Mostly cloudy, with a high near 54.
Sunday Night
A slight chance of rain. Mostly cloudy, with a low around 40.
Monday
A chance of rain. Mostly cloudy, with a high near 55.
Monday Night
Rain likely. Mostly cloudy, with a low around 44.
Tuesday
A chance of rain. Partly sunny, with a high near 57.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles E Umatilla OR
 45.91°N 119.18°W (Elev. 400 ft)
9:15 pm PST Dec 9, 2025
9pm PST Dec 9, 2025-6pm PST Dec 16, 2025
 
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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