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.

Overcast

28°F

-2°C

Humidity 79%
Wind Speed W 4 MPH
Barometer 30.43 in (1030.48 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 20 Jan 01:35 PM MST
Extended Forecast for

Ontario Municipal OR

Air Stagnation Advisory January 20, 01:55pm until January 23, 05:00am
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 20, 01:55pm until January 23, 05:00am

    NOW until 5:00am Fri

    Air Stagnation Advisory

  • This Afternoon

    High: 30 °F

    Mostly Cloudy

  • Tonight

    Tonight: Areas of fog after 11pm. Otherwise, increasing clouds, with a low around 22. Calm wind.

    Low: 22 °F

    Areas Fog

  • Wednesday

    Wednesday: Areas of fog. Otherwise, cloudy, with a high near 28. Calm wind.

    High: 28 °F

    Areas Fog

  • Wednesday Night

    Wednesday Night: Areas of fog before 8pm, then patchy fog after 2am. Otherwise, mostly cloudy, with a low around 22. Calm wind.

    Low: 22 °F

    Areas Fog

  • Thursday

    Thursday: Patchy fog before 11am, then areas of fog after 2pm. Otherwise, mostly cloudy, with a high near 27. Calm wind.

    High: 27 °F

    Areas Fog

  • Thursday Night

    Thursday Night: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 22.

    Low: 22 °F

    Patchy Fog

  • Friday

    Friday: Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 34.

    High: 34 °F

    Areas Fog
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 21.

    Low: 21 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 30. Calm wind.
Tonight
Areas of fog after 11pm. Otherwise, increasing clouds, with a low around 22. Calm wind.
Wednesday
Areas of fog. Otherwise, cloudy, with a high near 28. Calm wind.
Wednesday Night
Areas of fog before 8pm, then patchy fog after 2am. Otherwise, mostly cloudy, with a low around 22. Calm wind.
Thursday
Patchy fog before 11am, then areas of fog after 2pm. Otherwise, mostly cloudy, with a high near 27. Calm wind.
Thursday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 22.
Friday
Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 34.
Friday Night
Mostly cloudy, with a low around 21.
Saturday
Partly sunny, with a high near 32.
Saturday Night
Mostly cloudy, with a low around 18.
Sunday
Mostly cloudy, with a high near 27.
Sunday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 24.
Monday
Patchy fog. Otherwise, partly sunny, with a high near 32.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ontario Municipal OR
 44.03°N 117°W (Elev. 2139 ft)
Last Update:
9:10 am MST Jan 20, 2026
Forecast Valid:
1pm MST Jan 20, 2026-6pm MST Jan 26, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation