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

55°F

13°C

Humidity 54%
Wind Speed N 0 MPH
Barometer 29.82 in (1009.82 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 08 Mar 08:05 PM MDT
Extended Forecast for

Ontario OR

  • Tonight

    Tonight: Partly cloudy, with a low around 38. East wind around 5 mph becoming west after midnight.

    Low: 38 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 52. West wind 5 to 14 mph becoming north in the afternoon.

    High: 52 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 29. North wind 6 to 13 mph.

    Low: 29 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 48. Northwest wind 5 to 8 mph.

    High: 48 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 28. Northwest wind 5 to 7 mph becoming calm after midnight.

    Low: 28 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 56.

    High: 56 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Thursday

    Thursday: A 30 percent chance of rain, mainly after noon. Cloudy, with a high near 65. Breezy.

    High: 65 °F

    Chance Rain
    and Breezy

  • Thursday Night

    Thursday Night: A 30 percent chance of rain. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance Rain

Detailed Forecast

Tonight
Partly cloudy, with a low around 38. East wind around 5 mph becoming west after midnight.
Monday
Mostly sunny, with a high near 52. West wind 5 to 14 mph becoming north in the afternoon.
Monday Night
Partly cloudy, with a low around 29. North wind 6 to 13 mph.
Tuesday
Mostly sunny, with a high near 48. Northwest wind 5 to 8 mph.
Tuesday Night
Partly cloudy, with a low around 28. Northwest wind 5 to 7 mph becoming calm after midnight.
Wednesday
Mostly cloudy, with a high near 56.
Wednesday Night
A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 41.
Thursday
A 30 percent chance of rain, mainly after noon. Cloudy, with a high near 65. Breezy.
Thursday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 43.
Friday
A 30 percent chance of rain, mainly before noon. Cloudy, with a high near 62.
Friday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 45.
Saturday
A 40 percent chance of rain. Cloudy, with a high near 63.
Saturday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 41.
Sunday
A 20 percent chance of rain. Cloudy, with a high near 60.
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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:
3:04 pm MDT Mar 8, 2026
Forecast Valid:
8pm MDT Mar 8, 2026-6pm MDT Mar 15, 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