Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds in the North-Central U.S.

A prolonged atmospheric river will continue impacting the Pacific Northwest with heavy rainfall which has lead to areas of urban and river flooding along with gusty winds into Thursday. A clipper will bring heavy snow, some mixed wintry precipitation, and gusty to high winds across the northern Plains, Upper Midwest, and the Great Lakes into Thursday morning. Read More >

Current conditions at

Ontario Municipal Airport (KONO)

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

Overcast

52°F

11°C

Humidity 76%
Wind Speed NE 6 MPH
Barometer 30.13 in (1020.32 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 09 Dec 02:35 PM MST
Extended Forecast for

Ontario Municipal OR

  • This Afternoon

    This Afternoon: Rain likely.  Cloudy, with a high near 56. North northeast wind 3 to 5 mph.  Chance of precipitation is 60%.

    High: 56 °F

    Rain Likely

  • Tonight

    Tonight: Rain likely, mainly before 11pm.  Mostly cloudy, with a low around 42. Calm wind becoming south around 5 mph after midnight.  Chance of precipitation is 60%.

    Low: 42 °F

    Rain Likely

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 58. Light and variable wind.

    High: 58 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 54. Calm wind.

    High: 54 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

  • Friday

    Friday: Patchy fog before 11am.  Otherwise, mostly sunny, with a high near 53.

    High: 53 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

  • Saturday

    Saturday: Patchy fog before 11am.  Otherwise, mostly sunny, with a high near 51.

    High: 51 °F

    Patchy Fog
    then Mostly
    Sunny

Detailed Forecast

This Afternoon
Rain likely. Cloudy, with a high near 56. North northeast wind 3 to 5 mph. Chance of precipitation is 60%.
Tonight
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 42. Calm wind becoming south around 5 mph after midnight. Chance of precipitation is 60%.
Wednesday
Mostly cloudy, with a high near 58. Light and variable wind.
Wednesday Night
Mostly cloudy, with a low around 36. Calm wind.
Thursday
Partly sunny, with a high near 54. Calm wind.
Thursday Night
Partly cloudy, with a low around 35.
Friday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 53.
Friday Night
Partly cloudy, with a low around 31.
Saturday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 51.
Saturday Night
Partly cloudy, with a low around 30.
Sunday
Partly sunny, with a high near 49.
Sunday Night
Mostly cloudy, with a low around 33.
Monday
A 30 percent chance of rain. Mostly cloudy, with a high near 48.
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ABOUT THIS FORECAST

 
Point Forecast:
Ontario Municipal OR
 44.03°N 117°W (Elev. 2139 ft)
2:04 pm MST Dec 9, 2025
2pm MST Dec 9, 2025-6pm MST Dec 15, 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