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.

Clear

34°F

1°C

Humidity 85%
Wind Speed N 0 MPH
Barometer 30.63 in (1037.25 mb)
Dewpoint 30°F (-1°C)
Visibility 8.00 mi
Last update 13 Jan 12:53 PM MST
Extended Forecast for

Ontario OR

Air Stagnation Advisory January 13, 01:07pm until January 19, 05:00am
Dense Fog Advisory January 13, 11:00pm until January 14, 12:00pm
Click here for hazard details and duration
Air Stagnation Advisory
Dense Fog Advisory
  •  
    Air Stagnation Advisory January 13, 01:07pm until January 19, 05:00am

    NOW until 5:00am Mon

    Air Stagnation Advisory

  • This Afternoon

    High: 37 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 25. Calm wind.

    Low: 25 °F

    Patchy Fog

  • Wednesday

    Wednesday: Areas of fog before noon. Otherwise, mostly sunny, with a high near 37. Calm wind.

    High: 37 °F

    Areas Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 9pm. Otherwise, mostly clear, with a low around 22. Calm wind.

    Low: 22 °F

    Patchy Fog

  • Thursday

    Thursday: Areas of fog before noon. Otherwise, mostly sunny, with a high near 38. Calm wind.

    High: 38 °F

    Areas Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 10pm. Otherwise, mostly clear, with a low around 22.

    Low: 22 °F

    Patchy Fog

  • Friday

    Friday: Areas of fog before 11am. Otherwise, mostly sunny, with a high near 40.

    High: 40 °F

    Areas Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Patchy fog after 1am. Otherwise, mostly clear, with a low around 22.

    Low: 22 °F

    Mostly Clear
    then Patchy
    Fog

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 37. Calm wind.
Tonight
Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 25. Calm wind.
Wednesday
Areas of fog before noon. Otherwise, mostly sunny, with a high near 37. Calm wind.
Wednesday Night
Patchy fog after 9pm. Otherwise, mostly clear, with a low around 22. Calm wind.
Thursday
Areas of fog before noon. Otherwise, mostly sunny, with a high near 38. Calm wind.
Thursday Night
Patchy fog after 10pm. Otherwise, mostly clear, with a low around 22.
Friday
Areas of fog before 11am. Otherwise, mostly sunny, with a high near 40.
Friday Night
Patchy fog after 1am. Otherwise, mostly clear, with a low around 22.
Saturday
Areas of fog before 10am. Otherwise, sunny, with a high near 41.
Saturday Night
Patchy fog after midnight. Otherwise, mostly clear, with a low around 23.
Sunday
Patchy fog. Otherwise, sunny, with a high near 42.
Sunday Night
Patchy fog. Otherwise, mostly clear, with a low around 25.
M.L.King Day
Patchy fog. Otherwise, mostly 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:
9:41 am MST Jan 13, 2026
Forecast Valid:
1pm MST Jan 13, 2026-6pm MST Jan 19, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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