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

45°F

7°C

Humidity 70%
Wind Speed WSW 5 MPH
Barometer 29.87 in (1011.51 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 14 Mar 02:00 AM MDT
Extended Forecast for

Ontario OR

  • Overnight

    Overnight: A 20 percent chance of showers. Cloudy, with a low around 48. South southwest wind 6 to 8 mph.

    Low: 48 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Showers likely before noon. Cloudy through mid morning, then gradual clearing, with a high near 57. Breezy, with a south southwest wind 8 to 13 mph becoming northwest 20 to 25 mph in the morning. Winds could gust as high as 37 mph. Chance of precipitation is 60%.

    High: 57 °F

    Showers
    Likely then
    Mostly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 29. Blustery, with a north northwest wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 33 mph.

    Low: 29 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 50. Calm wind.

    High: 50 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 36. East wind around 6 mph becoming calm in the evening.

    Low: 36 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 61.

    High: 61 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of showers. Cloudy, with a low around 48. South southwest wind 6 to 8 mph.
Saturday
Showers likely before noon. Cloudy through mid morning, then gradual clearing, with a high near 57. Breezy, with a south southwest wind 8 to 13 mph becoming northwest 20 to 25 mph in the morning. Winds could gust as high as 37 mph. Chance of precipitation is 60%.
Saturday Night
Partly cloudy, with a low around 29. Blustery, with a north northwest wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 33 mph.
Sunday
Partly sunny, with a high near 50. Calm wind.
Sunday Night
Mostly cloudy, with a low around 36. East wind around 6 mph becoming calm in the evening.
Monday
Mostly cloudy, with a high near 61.
Monday Night
Mostly cloudy, with a low around 39.
Tuesday
Mostly sunny, with a high near 72.
Tuesday Night
Partly cloudy, with a low around 42.
Wednesday
Sunny, with a high near 75.
Wednesday Night
Partly cloudy, with a low around 46.
Thursday
Partly sunny, with a high near 79.
Thursday Night
Mostly cloudy, with a low around 48.
Friday
Mostly sunny, with a high near 78.
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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:
9:47 pm MDT Mar 13, 2026
Forecast Valid:
2am MDT Mar 14, 2026-6pm MDT Mar 20, 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