Significant and Catastrophic Flooding in the Pacific Northwest; Very Cold Temperatures in the Northern Plains

The atmospheric river over the Pacific Northwest will begin to subside today, but lingering rainfall will exacerbate ongoing catastrophic major river flooding, and landslides will continue across portions of western Washington and northwest Oregon for several days. Arctic air will plummet southward into the Northern Plains today, bringing cold air in the single digits to the region by Friday. Read More >

Current conditions at

Ontario Municipal Airport (KONO)

Lat: 44.01424°NLon: 117.00808°WElev: 2185.0ft.

Mist

36°F

2°C

Humidity 96%
Wind Speed N 0 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 35°F (2°C)
Visibility 1.75 mi
Last update 11 Dec 05:53 AM MST
Extended Forecast for

25 Miles WSW Adrian OR

Air Stagnation Advisory December 12, 05:00am until December 15, 05:00am
Click here for hazard details and duration
Air Stagnation Advisory
  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 55. West wind 6 to 10 mph.

    High: 55 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly clear, with a low around 35. West wind around 6 mph.

    Low: 35 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 53. West southwest wind around 6 mph.

    High: 53 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 32. West southwest wind 5 to 7 mph.

    Low: 32 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 50. West southwest wind around 5 mph becoming calm  in the morning.

    High: 50 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Monday

    Monday: A 30 percent chance of rain after 11am.  Partly sunny, with a high near 49.

    High: 49 °F

    Chance Rain

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 55. West wind 6 to 10 mph.
Tonight
Mostly clear, with a low around 35. West wind around 6 mph.
Friday
Sunny, with a high near 53. West southwest wind around 6 mph.
Friday Night
Partly cloudy, with a low around 32. West southwest wind 5 to 7 mph.
Saturday
Sunny, with a high near 50. West southwest wind around 5 mph becoming calm in the morning.
Saturday Night
Mostly clear, with a low around 31.
Sunday
Mostly sunny, with a high near 48.
Sunday Night
Mostly cloudy, with a low around 33.
Monday
A 30 percent chance of rain after 11am. Partly sunny, with a high near 49.
Monday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 39.
Tuesday
A 30 percent chance of rain. Partly sunny, with a high near 53.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 39. Chance of precipitation is 40%.
Wednesday
A chance of rain and snow. Partly sunny, with a high near 49. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
25 Miles WSW Adrian OR
 43.55°N 117.5°W (Elev. 3802 ft)
2:04 am MST Dec 11, 2025
6am MST Dec 11, 2025-6pm MST Dec 17, 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