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

37°F

3°C

Humidity 60%
Wind Speed WSW 5 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 28 Mar 01:35 AM MDT
Extended Forecast for

Ontario OR

  • Overnight

    Overnight: Partly cloudy, with a low around 30. Light west wind.

    Low: 30 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 70. Calm wind.

    High: 70 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 40. Calm wind becoming northwest around 5 mph.

    Low: 40 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 72. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 72 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 39. West southwest wind 5 to 9 mph becoming northwest in the evening.

    Low: 39 °F

    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of showers before noon. Mostly cloudy, with a high near 54.

    High: 54 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Slight Chance
    Showers

Detailed Forecast

Overnight
Partly cloudy, with a low around 30. Light west wind.
Saturday
Mostly sunny, with a high near 70. Calm wind.
Saturday Night
Mostly cloudy, with a low around 40. Calm wind becoming northwest around 5 mph.
Sunday
Partly sunny, with a high near 72. Calm wind becoming south southwest around 6 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 39. West southwest wind 5 to 9 mph becoming northwest in the evening.
Monday
A 20 percent chance of showers before noon. Mostly cloudy, with a high near 54.
Monday Night
Partly cloudy, with a low around 26.
Tuesday
Mostly sunny, with a high near 60.
Tuesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 40.
Wednesday
Showers likely, mainly after noon. Mostly cloudy, with a high near 62. Chance of precipitation is 60%.
Wednesday Night
Showers. Low around 38. Chance of precipitation is 80%.
Thursday
Showers likely. Mostly cloudy, with a high near 54. Chance of precipitation is 60%.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 32.
Friday
Mostly sunny, with a high near 57.
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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:
12:29 am MDT Mar 28, 2026
Forecast Valid:
2am MDT Mar 28, 2026-6pm MDT Apr 3, 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