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.

Mostly Cloudy

43°F

6°C

Humidity 70%
Wind Speed W 6 MPH
Barometer 30.33 in (1027.09 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 06 Mar 11:35 PM MST
Extended Forecast for

Ontario OR

  • Tonight

    Tonight: A 20 percent chance of showers. Increasing clouds, with a low around 38. Calm wind.

    Low: 38 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers before 11am. Cloudy through mid morning, then gradual clearing, with a high near 55. Calm wind becoming east around 5 mph in the afternoon.

    High: 55 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 11pm. Otherwise, mostly clear, with a low around 36. Light northeast wind.

    Low: 36 °F

    Patchy Fog

  • Sunday

    Sunday: Areas of fog before 8am. Otherwise, mostly sunny, with a high near 63. Calm wind.

    High: 63 °F

    Areas Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39. Northeast wind around 5 mph becoming west after midnight.

    Low: 39 °F

    Mostly Clear

  • Monday

    Monday: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 49.

    High: 49 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of showers. Increasing clouds, with a low around 38. Calm wind.
Saturday
A 20 percent chance of showers before 11am. Cloudy through mid morning, then gradual clearing, with a high near 55. Calm wind becoming east around 5 mph in the afternoon.
Saturday Night
Patchy fog after 11pm. Otherwise, mostly clear, with a low around 36. Light northeast wind.
Sunday
Areas of fog before 8am. Otherwise, mostly sunny, with a high near 63. Calm wind.
Sunday Night
Mostly clear, with a low around 39. Northeast wind around 5 mph becoming west after midnight.
Monday
Partly sunny, with a high near 57.
Monday Night
Partly cloudy, with a low around 30.
Tuesday
Mostly cloudy, with a high near 49.
Tuesday Night
Mostly cloudy, with a low around 30.
Wednesday
A 20 percent chance of rain. Mostly cloudy, with a high near 58.
Wednesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 39.
Thursday
A 20 percent chance of rain. Cloudy, with a high near 65.
Thursday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 40.
Friday
A 20 percent chance of rain. Mostly cloudy, with a high near 58.
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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 Mar 6, 2026
Forecast Valid:
11pm MST Mar 6, 2026-6pm MDT Mar 13, 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