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

34°F

1°C

Humidity 59%
Wind Speed WSW 6 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 10 Mar 03:20 AM MDT
Extended Forecast for

Ontario OR

  • Overnight

    Overnight: Mostly cloudy, with a low around 31. Northwest wind around 6 mph.

    Low: 31 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 48. West northwest wind 5 to 11 mph, with gusts as high as 20 mph.

    High: 48 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 28. Northwest wind 6 to 11 mph becoming light and variable.

    Low: 28 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 57. Calm wind becoming south around 6 mph in the afternoon.

    High: 57 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 39. South southeast wind around 6 mph becoming calm.

    Low: 39 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 64.

    High: 64 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of rain. Cloudy, with a high near 67.

    High: 67 °F

    Slight Chance
    Rain

  • Friday Night

    Friday Night: A 40 percent chance of rain. Cloudy, with a low around 48.

    Low: 48 °F

    Chance Rain

Detailed Forecast

Overnight
Mostly cloudy, with a low around 31. Northwest wind around 6 mph.
Tuesday
Partly sunny, with a high near 48. West northwest wind 5 to 11 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 28. Northwest wind 6 to 11 mph becoming light and variable.
Wednesday
Mostly cloudy, with a high near 57. Calm wind becoming south around 6 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 39. South southeast wind around 6 mph becoming calm.
Thursday
Mostly cloudy, with a high near 64.
Thursday Night
Mostly cloudy, with a low around 44.
Friday
A 20 percent chance of rain. Cloudy, with a high near 67.
Friday Night
A 40 percent chance of rain. Cloudy, with a low around 48.
Saturday
A 40 percent chance of rain, mainly before noon. Mostly sunny, with a high near 60.
Saturday Night
Mostly cloudy, with a low around 35.
Sunday
Mostly cloudy, with a high near 56.
Sunday Night
Mostly cloudy, with a low around 39.
Monday
Mostly cloudy, with a high near 66.
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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:
3:04 am MDT Mar 10, 2026
Forecast Valid:
3am MDT Mar 10, 2026-6pm MDT Mar 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