National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Ontario Municipal Airport (KONO)

Lat: 44.01424°NLon: 117.00808°WElev: 2185.0ft.

Clear

39°F

4°C

Humidity 75%
Wind Speed NNW 4 MPH
Barometer 30.42 in (1030.14 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 28 Jan 05:53 PM MST
Extended Forecast for

Ontario OR

  • Tonight

    Tonight: Areas of fog after midnight. Otherwise, increasing clouds, with a low around 28. Light and variable wind.

    Low: 28 °F

    Mostly Cloudy
    then Areas
    Fog

  • Thursday

    Thursday: A slight chance of snow, mixing with rain after 9am, then gradually ending. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 40. Calm wind. Chance of precipitation is 20%.

    High: 40 °F

    Slight Chance
    Rain/Snow and
    Patchy Fog
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 30. Calm wind.

    Low: 30 °F

    Patchy Fog

  • Friday

    Friday: Areas of fog before 11am. Otherwise, cloudy, with a high near 41. Calm wind.

    High: 41 °F

    Areas Fog
    then Cloudy

  • Friday Night

    Friday Night: Areas of fog after 11pm. Otherwise, mostly cloudy, with a low around 31. Calm wind.

    Low: 31 °F

    Areas Fog

  • Saturday

    Saturday: Mostly cloudy, with a high near 41.

    High: 41 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 41.

    High: 41 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Areas of fog after midnight. Otherwise, increasing clouds, with a low around 28. Light and variable wind.
Thursday
A slight chance of snow, mixing with rain after 9am, then gradually ending. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 40. Calm wind. Chance of precipitation is 20%.
Thursday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 30. Calm wind.
Friday
Areas of fog before 11am. Otherwise, cloudy, with a high near 41. Calm wind.
Friday Night
Areas of fog after 11pm. Otherwise, mostly cloudy, with a low around 31. Calm wind.
Saturday
Mostly cloudy, with a high near 41.
Saturday Night
Mostly cloudy, with a low around 31.
Sunday
Mostly cloudy, with a high near 41.
Sunday Night
Mostly cloudy, with a low around 32.
Monday
Partly sunny, with a high near 45.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Mostly sunny, with a high near 44.
Tuesday Night
Mostly clear, with a low around 28.
Wednesday
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:
2:04 pm MST Jan 28, 2026
Forecast Valid:
6pm MST Jan 28, 2026-6pm MST Feb 4, 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