National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Ontario Municipal Airport (KONO)

Lat: 44.01424°NLon: 117.00808°WElev: 2185.0ft.

Clear

32°F

0°C

Humidity 86%
Wind Speed WSW 4 MPH
Barometer 30.25 in (1024.38 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 18 Apr 07:35 AM MDT
Extended Forecast for

Ontario Municipal OR

Freeze Warning until April 18, 10:00am
Click here for hazard details and duration
...
  •  
    Freeze Warning until April 18, 10:00am

    NOW until 10:00am Sat

    Freeze Warning

  • Today

    High: 63 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 35. East southeast wind 5 to 8 mph becoming light and variable after midnight.

    Low: 35 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 70. Calm wind becoming east around 6 mph in the afternoon.

    High: 70 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 42. North northeast wind around 6 mph becoming calm after midnight.

    Low: 42 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 77. Calm wind.

    High: 77 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely after midnight. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.

    Low: 48 °F

    Showers
    Likely

Detailed Forecast

Today
Partly sunny, with a high near 63. Light and variable wind becoming southeast 5 to 10 mph in the morning.
Tonight
Mostly clear, with a low around 35. East southeast wind 5 to 8 mph becoming light and variable after midnight.
Sunday
Mostly sunny, with a high near 70. Calm wind becoming east around 6 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 42. North northeast wind around 6 mph becoming calm after midnight.
Monday
Mostly sunny, with a high near 77. Calm wind.
Monday Night
Partly cloudy, with a low around 46.
Tuesday
Mostly sunny, with a high near 78.
Tuesday Night
A chance of showers and thunderstorms, then showers likely after midnight. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.
Wednesday
Showers likely. Mostly cloudy, with a high near 58. Chance of precipitation is 60%.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 41.
Thursday
A 20 percent chance of showers. Partly sunny, with a high near 59.
Thursday Night
Mostly cloudy, with a low around 39.
Friday
Mostly sunny, with a high near 62.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ontario Municipal OR
 44.03°N 117°W (Elev. 2139 ft)
Last Update:
12:30 am MDT Apr 18, 2026
Forecast Valid:
7am MDT Apr 18, 2026-6pm MDT Apr 24, 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