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

39°F

4°C

Humidity 79%
Wind Speed W 3 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 19 Apr 08:53 AM MDT
Extended Forecast for

Ontario Municipal OR

  • Today

    Today: Mostly sunny, with a high near 70. Calm wind becoming north northeast 5 to 8 mph in the afternoon.

    High: 70 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 41. North wind 5 to 7 mph becoming calm.

    Low: 41 °F

    Mostly Cloudy

  • Monday

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

    High: 77 °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: Mostly sunny, with a high near 77. Calm wind becoming northwest 5 to 7 mph in the afternoon.

    High: 77 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Showers, mainly after midnight. Low around 48. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 48 °F

    Chance
    Showers then
    Showers

  • Wednesday

    Wednesday: Showers. High near 57. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 57 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly before midnight. Mostly cloudy, with a low around 43. Chance of precipitation is 60%.

    Low: 43 °F

    Showers
    Likely

  • Thursday

    Thursday: A 20 percent chance of showers. Partly sunny, with a high near 60.

    High: 60 °F

    Slight Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 70. Calm wind becoming north northeast 5 to 8 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 41. North wind 5 to 7 mph becoming calm.
Monday
Mostly sunny, with a high near 77. Light northeast wind.
Monday Night
Partly cloudy, with a low around 45. North northeast wind around 6 mph becoming calm after midnight.
Tuesday
Mostly sunny, with a high near 77. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Tuesday Night
Showers, mainly after midnight. Low around 48. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Showers. High near 57. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Showers likely, mainly before midnight. Mostly cloudy, with a low around 43. Chance of precipitation is 60%.
Thursday
A 20 percent chance of showers. Partly sunny, with a high near 60.
Thursday Night
Partly cloudy, with a low around 37.
Friday
Sunny, with a high near 62.
Friday Night
Partly cloudy, with a low around 37.
Saturday
Sunny, with a high near 64.
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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 am MDT Apr 19, 2026
Forecast Valid:
9am MDT Apr 19, 2026-6pm MDT Apr 25, 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