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

25°F

-4°C

Humidity 79%
Wind Speed N 0 MPH
Barometer 30.59 in (1035.9 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 30 Dec 04:05 AM MST
Extended Forecast for

Ontario OR

Air Stagnation Advisory December 30, 04:27am until January 3, 05:00am
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory December 30, 04:27am until January 3, 05:00am

    NOW until 5:00am Sat

    Air Stagnation Advisory

  • Today

    High: 38 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 22. Northwest wind around 5 mph becoming calm in the evening.

    Low: 22 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 37. Calm wind.

    High: 37 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 10 percent chance of snow after 5am. Mostly cloudy, with a low around 26. Light and variable wind.

    Low: 26 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • New Year's Day

    New Year's Day: A slight chance of snow before 8am, then rain likely. Cloudy, with a high near 38. Calm wind. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 38 °F

    Rain/Snow
    Likely then
    Rain Likely

  • Thursday Night

    Thursday Night: Rain likely. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 34. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 34 °F

    Rain Likely
    and Patchy
    Fog

  • Friday

    Friday: A 50 percent chance of rain. Areas of fog before 2pm. Otherwise, mostly cloudy, with a high near 45.

    High: 45 °F

    Chance Rain
    and Areas Fog

  • Friday Night

    Friday Night: A 50 percent chance of rain. Patchy fog between 8pm and 11pm. Otherwise, mostly cloudy, with a low around 36.

    Low: 36 °F

    Chance Rain
    and Patchy
    Fog

Detailed Forecast

Today
Sunny, with a high near 38. Light north wind.
Tonight
Mostly clear, with a low around 22. Northwest wind around 5 mph becoming calm in the evening.
Wednesday
Partly sunny, with a high near 37. Calm wind.
Wednesday Night
A 10 percent chance of snow after 5am. Mostly cloudy, with a low around 26. Light and variable wind.
New Year's Day
A slight chance of snow before 8am, then rain likely. Cloudy, with a high near 38. Calm wind. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday Night
Rain likely. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 34. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
A 50 percent chance of rain. Areas of fog before 2pm. Otherwise, mostly cloudy, with a high near 45.
Friday Night
A 50 percent chance of rain. Patchy fog between 8pm and 11pm. Otherwise, mostly cloudy, with a low around 36.
Saturday
A 50 percent chance of rain. Mostly cloudy, with a high near 49.
Saturday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 32.
Sunday
A 30 percent chance of rain. Partly sunny, with a high near 45.
Sunday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 30.
Monday
A 30 percent chance of rain. Mostly cloudy, with a high near 43.
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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 am MST Dec 30, 2025
Forecast Valid:
4am MST Dec 30, 2025-6pm MST Jan 5, 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