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

51°F

11°C

Humidity 76%
Wind Speed NNE 4 MPH
Barometer 30.16 in (1021.34 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 09 Dec 04:53 PM MST
Extended Forecast for

Ontario Municipal OR

  • This Afternoon

    This Afternoon: Rain likely.  Cloudy, with a high near 56. North northeast wind around 6 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. Light and variable wind becoming southeast 5 to 7 mph after midnight.  Chance of precipitation is 60%.

    Low: 42 °F

    Rain Likely

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 58. South wind around 5 mph becoming calm  in the afternoon.

    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 33.

    Low: 33 °F

    Partly Cloudy

  • Friday

    Friday: Patchy fog before 11am.  Otherwise, mostly sunny, with a high near 50.

    High: 50 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Rain likely. Cloudy, with a high near 56. North northeast wind around 6 mph. Chance of precipitation is 60%.
Tonight
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 42. Light and variable wind becoming southeast 5 to 7 mph after midnight. Chance of precipitation is 60%.
Wednesday
Mostly cloudy, with a high near 58. South wind around 5 mph becoming calm in the afternoon.
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 33.
Friday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 50.
Friday Night
Partly cloudy, with a low around 30.
Saturday
Mostly sunny, with a high near 49.
Saturday Night
Partly cloudy, with a low around 29.
Sunday
Partly sunny, with a high near 46.
Sunday Night
Mostly cloudy, with a low around 30.
Monday
A 30 percent chance of rain. Mostly cloudy, with a high near 45.
Monday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 33.
Tuesday
A chance of rain. Partly sunny, with a high near 51.
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ABOUT THIS FORECAST

 
Point Forecast:
Ontario Municipal OR
 44.01°N 117°W (Elev. 2129 ft)
2:04 pm MST Dec 9, 2025
5pm MST Dec 9, 2025-6pm MST Dec 16, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database