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.

Partly Cloudy

51°F

11°C

Humidity 60%
Wind Speed N 0 MPH
Barometer 29.86 in (1011.18 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 10 Apr 08:53 AM MDT
Extended Forecast for

Ontario OR

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 70. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 70 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely. Mostly cloudy, with a low around 49. South southeast wind around 5 mph becoming light and variable after midnight. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 49 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers likely, with thunderstorms also possible after noon. Mostly cloudy, with a high near 66. South wind 3 to 7 mph. Chance of precipitation is 60%.

    High: 66 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 46. South southeast wind 5 to 8 mph becoming calm after midnight.

    Low: 46 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers, with thunderstorms also possible after noon. High near 61. Calm wind becoming southwest 5 to 9 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 61 °F

    Showers

  • Sunday Night

    Sunday Night: Showers. Low around 42. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 42 °F

    Showers

  • Monday

    Monday: A 50 percent chance of showers. Mostly cloudy, with a high near 57.

    High: 57 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 70. Calm wind becoming west southwest around 5 mph in the afternoon.
Tonight
Showers and thunderstorms likely. Mostly cloudy, with a low around 49. South southeast wind around 5 mph becoming light and variable after midnight. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers likely, with thunderstorms also possible after noon. Mostly cloudy, with a high near 66. South wind 3 to 7 mph. Chance of precipitation is 60%.
Saturday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 46. South southeast wind 5 to 8 mph becoming calm after midnight.
Sunday
Showers, with thunderstorms also possible after noon. High near 61. Calm wind becoming southwest 5 to 9 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers. Low around 42. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
A 50 percent chance of showers. Mostly cloudy, with a high near 57.
Monday Night
Mostly cloudy, with a low around 38.
Tuesday
Mostly sunny, with a high near 61.
Tuesday Night
A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 41.
Wednesday
A 30 percent chance of showers. Mostly cloudy, with a high near 59.
Wednesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 36.
Thursday
Mostly sunny, with a high near 56.
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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:
3:49 am MDT Apr 10, 2026
Forecast Valid:
9am MDT Apr 10, 2026-6pm MDT Apr 16, 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