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

28°F

-2°C

Humidity 95%
Wind Speed N 0 MPH
Barometer 30.59 in (1035.9 mb)
Dewpoint 27°F (-3°C)
Visibility 5.00 mi
Last update 17 Jan 10:53 AM MST
Extended Forecast for

Ontario OR

Air Stagnation Advisory January 17, 11:05am until January 20, 05:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 17, 11:05am until January 20, 05:00pm

    NOW until 5:00pm Tue

    Air Stagnation Advisory

  • Today

    High: 32 °F

    Areas Dense
    Fog

  • Tonight

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

    Low: 22 °F

    Patchy Dense
    Fog

  • Sunday

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

    High: 32 °F

    Areas Dense
    Fog

  • Sunday Night

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

    Low: 23 °F

    Patchy Fog

  • M.L.King Day

    M.L.King Day: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 33. Calm wind.

    High: 33 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 24.

    Low: 24 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 25 °F

    Partly Cloudy

Detailed Forecast

Today
Areas of dense fog. Otherwise, cloudy, with a high near 32. Calm wind.
Tonight
Patchy dense fog. Otherwise, cloudy, with a low around 22. Calm wind.
Sunday
Areas of dense fog. Otherwise, mostly cloudy, with a high near 32. Calm wind.
Sunday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 23. Calm wind.
M.L.King Day
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 33. Calm wind.
Monday Night
Mostly clear, with a low around 24.
Tuesday
Mostly sunny, with a high near 42.
Tuesday Night
Partly cloudy, with a low around 25.
Wednesday
Mostly sunny, with a high near 44.
Wednesday Night
Partly cloudy, with a low around 26.
Thursday
Partly sunny, with a high near 42.
Thursday Night
Mostly cloudy, with a low around 26.
Friday
Mostly sunny, with a high near 43.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Ontario OR
 44.03°N 116.97°W (Elev. 2103 ft)
Last Update:
2:05 am MST Jan 17, 2026
Forecast Valid:
11am MST Jan 17, 2026-6pm MST Jan 23, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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