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.

Overcast

39°F

4°C

Humidity 64%
Wind Speed SSE 8 MPH
Barometer 30.46 in (1031.49 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 11 Mar 11:35 AM MDT
Extended Forecast for

Ontario OR

  • Today

    Today: Mostly cloudy, with a high near 54. South southeast wind 5 to 10 mph.

    High: 54 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 39. Southeast wind 5 to 8 mph becoming south southwest after midnight.

    Low: 39 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 63. Southwest wind 9 to 17 mph, with gusts as high as 28 mph.

    High: 63 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A 20 percent chance of rain before midnight. Cloudy, with a low around 47. West wind 6 to 10 mph, with gusts as high as 22 mph.

    Low: 47 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Friday

    Friday: Cloudy, with a high near 66. South southwest wind 6 to 10 mph, with gusts as high as 22 mph.

    High: 66 °F

    Cloudy

  • Friday Night

    Friday Night: A 20 percent chance of rain after midnight. Cloudy, with a low around 48.

    Low: 48 °F

    Cloudy then
    Slight Chance
    Rain

  • Saturday

    Saturday: A 50 percent chance of rain, mainly before noon. Partly sunny, with a high near 61.

    High: 61 °F

    Chance Rain
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 56.

    High: 56 °F

    Mostly Cloudy

Detailed Forecast

Today
Mostly cloudy, with a high near 54. South southeast wind 5 to 10 mph.
Tonight
Mostly cloudy, with a low around 39. Southeast wind 5 to 8 mph becoming south southwest after midnight.
Thursday
Mostly cloudy, with a high near 63. Southwest wind 9 to 17 mph, with gusts as high as 28 mph.
Thursday Night
A 20 percent chance of rain before midnight. Cloudy, with a low around 47. West wind 6 to 10 mph, with gusts as high as 22 mph.
Friday
Cloudy, with a high near 66. South southwest wind 6 to 10 mph, with gusts as high as 22 mph.
Friday Night
A 20 percent chance of rain after midnight. Cloudy, with a low around 48.
Saturday
A 50 percent chance of rain, mainly before noon. Partly sunny, with a high near 61.
Saturday Night
Mostly cloudy, with a low around 34.
Sunday
Mostly cloudy, with a high near 56.
Sunday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 39.
Monday
A 20 percent chance of rain. Mostly cloudy, with a high near 66.
Monday Night
Mostly cloudy, with a low around 43.
Tuesday
Partly sunny, with a high near 72.
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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:
9:39 am MDT Mar 11, 2026
Forecast Valid:
11am MDT Mar 11, 2026-6pm MDT Mar 17, 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