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

34°F

1°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.58 in (1035.56 mb)
Dewpoint 34°F (1°C)
Visibility 1.50 mi
Last update 14 Jan 03:35 PM MST
Extended Forecast for

Ontario OR

Air Stagnation Advisory January 14, 03:51pm until January 19, 05:00am
Dense Fog Advisory until January 15, 11:00am
Click here for hazard details and duration
Air Stagnation Advisory
Dense Fog Advisory
  •  
    Air Stagnation Advisory January 14, 03:51pm until January 19, 05:00am
    Dense Fog Advisory until January 15, 11:00am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • This Afternoon

    High: 40 °F

    Patchy Fog

  • Tonight

    Tonight: Areas of fog. Otherwise, partly cloudy, with a low around 24. Light and variable wind.

    Low: 24 °F

    Areas Fog

  • Thursday

    Thursday: Areas of fog. Otherwise, mostly sunny, with a high near 40. Calm wind.

    High: 40 °F

    Areas Fog

  • Thursday Night

    Thursday Night: Patchy fog. Otherwise, mostly clear, with a low around 25. Calm wind.

    Low: 25 °F

    Patchy Fog

  • Friday

    Friday: Areas of fog. Otherwise, mostly sunny, with a high near 41. Light and variable wind.

    High: 41 °F

    Areas Fog

  • Friday Night

    Friday Night: Areas of fog. Otherwise, mostly clear, with a low around 24.

    Low: 24 °F

    Areas Fog

  • Saturday

    Saturday: Areas of fog before 11am. Otherwise, mostly sunny, with a high near 42.

    High: 42 °F

    Areas Fog
    then Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 23.

    Low: 23 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Patchy fog. Otherwise, mostly sunny, with a high near 40. Calm wind.
Tonight
Areas of fog. Otherwise, partly cloudy, with a low around 24. Light and variable wind.
Thursday
Areas of fog. Otherwise, mostly sunny, with a high near 40. Calm wind.
Thursday Night
Patchy fog. Otherwise, mostly clear, with a low around 25. Calm wind.
Friday
Areas of fog. Otherwise, mostly sunny, with a high near 41. Light and variable wind.
Friday Night
Areas of fog. Otherwise, mostly clear, with a low around 24.
Saturday
Areas of fog before 11am. Otherwise, mostly sunny, with a high near 42.
Saturday Night
Mostly clear, with a low around 23.
Sunday
Mostly sunny, with a high near 43.
Sunday Night
Mostly clear, with a low around 24.
M.L.King Day
Mostly sunny, with a high near 43.
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 45.
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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:
2:04 pm MST Jan 14, 2026
Forecast Valid:
3pm MST Jan 14, 2026-6pm MST Jan 21, 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

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Chance of Precipitation