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

Hazardous Weather Conditions

Current conditions at

Ontario Municipal Airport (KONO)

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

Mist

30°F

-1°C

Humidity 92%
Wind Speed N 3 MPH
Barometer 30.55 in (1034.54 mb)
Dewpoint 28°F (-2°C)
Visibility 5.00 mi
Last update 17 Jan 02:20 PM MST
Extended Forecast for

Ontario OR

Air Stagnation Advisory January 17, 02:33pm until January 22, 11:00am
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 17, 02:33pm until January 22, 11:00am

    NOW until 11:00am Thu

    Air Stagnation Advisory

  • This Afternoon

    High: 36 °F

    Areas Dense
    Fog

  • Tonight

    Tonight: Patchy dense fog. Otherwise, mostly cloudy, with a low around 22. Calm wind.

    Low: 22 °F

    Patchy Dense
    Fog

  • Sunday

    Sunday: Areas of dense fog. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 32. Calm wind.

    High: 32 °F

    Areas Dense
    Fog

  • Sunday Night

    Sunday Night: Patchy fog. Otherwise, mostly clear, with a low around 23. Calm wind.

    Low: 23 °F

    Patchy Fog

  • M.L.King Day

    M.L.King Day: Patchy fog before noon. Otherwise, mostly sunny, with a high near 33. Calm wind.

    High: 33 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Patchy fog after 8pm. Otherwise, mostly clear, with a low around 24.

    Low: 24 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 1pm. Otherwise, mostly sunny, with a high near 41.

    High: 41 °F

    Patchy Fog

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Areas of dense fog. Otherwise, mostly cloudy, with a high near 36. Calm wind.
Tonight
Patchy dense fog. Otherwise, mostly cloudy, with a low around 22. Calm wind.
Sunday
Areas of dense fog. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 32. Calm wind.
Sunday Night
Patchy fog. Otherwise, mostly clear, with a low around 23. Calm wind.
M.L.King Day
Patchy fog before noon. Otherwise, mostly sunny, with a high near 33. Calm wind.
Monday Night
Patchy fog after 8pm. Otherwise, mostly clear, with a low around 24.
Tuesday
Patchy fog before 1pm. Otherwise, mostly sunny, with a high near 41.
Tuesday Night
Partly cloudy, with a low around 25.
Wednesday
Partly sunny, with a high near 43.
Wednesday Night
Mostly cloudy, with a low around 26.
Thursday
Partly sunny, with a high near 43.
Thursday Night
Mostly cloudy, with a low around 28.
Friday
A slight chance of rain and snow. Partly sunny, with a high near 45. Chance of precipitation is 20%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ontario OR
 44.03°N 116.97°W (Elev. 2103 ft)
Last Update:
2:05 pm MST Jan 17, 2026
Forecast Valid:
2pm MST Jan 17, 2026-6pm MST Jan 23, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation