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 100%
Wind Speed NNE 4 MPH
Barometer 30.49 in (1032.51 mb)
Dewpoint 28°F (-2°C)
Visibility 1.75 mi
Wind Chill23°F (-5°C)
Last update 16 Jan 04:20 PM MST
Extended Forecast for

Ontario OR

Air Stagnation Advisory January 16, 04:35pm until January 20, 05:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 16, 04:35pm until January 20, 05:00pm

    NOW until 5:00pm Tue

    Air Stagnation Advisory

  • Tonight

    Low: 24 °F

    Fog

  • Saturday

    Saturday: Widespread fog before 11am. Otherwise, mostly cloudy, with a high near 34. Calm wind.

    High: 34 °F

    Fog then
    Mostly Cloudy

  • Saturday Night

    Saturday Night: Widespread fog, mainly after 11pm. Otherwise, mostly cloudy, with a low around 24. Calm wind.

    Low: 24 °F

    Fog

  • Sunday

    Sunday: Widespread fog before 11am. Otherwise, partly sunny, with a high near 33. Calm wind.

    High: 33 °F

    Fog then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Widespread fog, mainly after 2am. Otherwise, partly cloudy, with a low around 24. Calm wind.

    Low: 24 °F

    Fog

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 22.

    Low: 22 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

Detailed Forecast

Tonight
Widespread fog, mainly after 11pm. Otherwise, mostly cloudy, with a low around 24. Calm wind.
Saturday
Widespread fog before 11am. Otherwise, mostly cloudy, with a high near 34. Calm wind.
Saturday Night
Widespread fog, mainly after 11pm. Otherwise, mostly cloudy, with a low around 24. Calm wind.
Sunday
Widespread fog before 11am. Otherwise, partly sunny, with a high near 33. Calm wind.
Sunday Night
Widespread fog, mainly after 2am. Otherwise, partly cloudy, with a low around 24. Calm wind.
M.L.King Day
Mostly sunny, with a high near 42.
Monday Night
Mostly clear, with a low around 22.
Tuesday
Mostly sunny, with a high near 42.
Tuesday Night
Partly cloudy, with a low around 23.
Wednesday
Partly sunny, with a high near 42.
Wednesday Night
Mostly cloudy, with a low around 27.
Thursday
Mostly sunny, with a high near 42.
Thursday Night
Partly cloudy, with a low around 25.
Friday
A slight chance of rain and snow. Mostly sunny, with a high near 43. 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 16, 2026
Forecast Valid:
4pm MST Jan 16, 2026-6pm MST Jan 23, 2026
 
Forecast Discussion
 
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Additional Resources

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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