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.

freezing fog

28°F

-2°C

Humidity 92%
Wind Speed SE 4 MPH
Barometer 30.46 in (1031.49 mb)
Dewpoint 27°F (-3°C)
Visibility 0.24 mi
Wind Chill23°F (-5°C)
Last update 15 Jan 07:05 PM MST
Extended Forecast for

Ontario OR

Air Stagnation Advisory January 15, 07:30pm until January 19, 05:00am
Dense Fog Advisory January 15, 07:30pm until January 16, 01:00pm
Click here for hazard details and duration
Air Stagnation Advisory
Dense Fog Advisory
  •  
    Air Stagnation Advisory January 15, 07:30pm until January 19, 05:00am
    Dense Fog Advisory January 15, 07:30pm until January 16, 01:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 25 °F

    Areas Dense
    Fog

  • Friday

    Friday: Areas of dense fog. Otherwise, mostly cloudy, with a high near 33. Calm wind.

    High: 33 °F

    Areas Dense
    Fog

  • Friday Night

    Friday Night: Patchy dense fog. Otherwise, mostly cloudy, with a low around 24. North wind around 5 mph becoming calm in the evening.

    Low: 24 °F

    Patchy Dense
    Fog

  • Saturday

    Saturday: Areas of dense fog. Otherwise, mostly cloudy, with a high near 33. Calm wind.

    High: 33 °F

    Areas Dense
    Fog

  • Saturday Night

    Saturday Night: Patchy dense fog. Otherwise, mostly cloudy, with a low around 24. Calm wind.

    Low: 24 °F

    Patchy Dense
    Fog

  • Sunday

    Sunday: Areas of dense fog. Otherwise, mostly cloudy, with a high near 39.

    High: 39 °F

    Areas Dense
    Fog

  • Sunday Night

    Sunday Night: Areas of dense fog. Otherwise, mostly cloudy, with a low around 24.

    Low: 24 °F

    Areas Dense
    Fog

  • M.L.King Day

    M.L.King Day: Areas of dense fog before 11am. Otherwise, mostly sunny, with a high near 39.

    High: 39 °F

    Areas Dense
    Fog then
    Sunny

Detailed Forecast

Tonight
Areas of dense fog. Otherwise, mostly cloudy, with a low around 25. Calm wind.
Friday
Areas of dense fog. Otherwise, mostly cloudy, with a high near 33. Calm wind.
Friday Night
Patchy dense fog. Otherwise, mostly cloudy, with a low around 24. North wind around 5 mph becoming calm in the evening.
Saturday
Areas of dense fog. Otherwise, mostly cloudy, with a high near 33. Calm wind.
Saturday Night
Patchy dense fog. Otherwise, mostly cloudy, with a low around 24. Calm wind.
Sunday
Areas of dense fog. Otherwise, mostly cloudy, with a high near 39.
Sunday Night
Areas of dense fog. Otherwise, mostly cloudy, with a low around 24.
M.L.King Day
Areas of dense fog before 11am. Otherwise, mostly sunny, with a high near 39.
Monday Night
Mostly clear, with a low around 24.
Tuesday
Mostly sunny, with a high near 37.
Tuesday Night
Partly cloudy, with a low around 25.
Wednesday
Partly sunny, with a high near 39.
Wednesday Night
Partly cloudy, with a low around 27.
Thursday
Partly sunny, with a high near 42.
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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:
2:06 pm MST Jan 15, 2026
Forecast Valid:
7pm MST Jan 15, 2026-6pm MST Jan 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation