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

70°F

21°C

Humidity 26%
Wind Speed N 5 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 19 Apr 05:35 PM MDT
Extended Forecast for

Ontario Municipal OR

  • Tonight

    Tonight: Mostly cloudy, with a low around 42. North wind 5 to 7 mph becoming calm after midnight.

    Low: 42 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 76. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 76 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 45. North northeast wind around 6 mph becoming calm after midnight.

    Low: 45 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 77. Calm wind becoming north northwest 5 to 7 mph in the afternoon.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers after 9pm. Low around 46. West southwest wind 11 to 17 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 46 °F

    Chance
    Showers then
    Showers

  • Wednesday

    Wednesday: Showers. High near 54. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 54 °F

    Showers

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers after noon. Partly sunny, with a high near 58.

    High: 58 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 42. North wind 5 to 7 mph becoming calm after midnight.
Monday
Mostly sunny, with a high near 76. Calm wind becoming southeast around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 45. North northeast wind around 6 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 77. Calm wind becoming north northwest 5 to 7 mph in the afternoon.
Tuesday Night
A chance of showers and thunderstorms, then showers after 9pm. Low around 46. West southwest wind 11 to 17 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Showers. High near 54. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 41.
Thursday
A 20 percent chance of showers after noon. Partly sunny, with a high near 58.
Thursday Night
Mostly clear, with a low around 36.
Friday
Sunny, with a high near 62.
Friday Night
Partly cloudy, with a low around 38.
Saturday
Mostly sunny, with a high near 63.
Saturday Night
Partly cloudy, with a low around 39.
Sunday
Mostly sunny, with a high near 65.
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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:
12:29 pm MDT Apr 19, 2026
Forecast Valid:
5pm MDT Apr 19, 2026-6pm MDT Apr 26, 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