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

46°F

8°C

Humidity 45%
Wind Speed SSE 3 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 28 Mar 10:30 AM MDT
Extended Forecast for

Ontario Municipal OR

  • Today

    Today: Mostly sunny, with a high near 70. Light and variable wind.

    High: 70 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 41. Light and variable wind becoming west northwest around 6 mph.

    Low: 41 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 71. Calm wind becoming south southwest 5 to 7 mph in the afternoon.

    High: 71 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 39. West southwest wind 6 to 11 mph becoming northwest in the evening.

    Low: 39 °F

    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of showers before noon. Mostly cloudy, with a high near 53. North northwest wind 13 to 18 mph.

    High: 53 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Showers likely, mainly after noon. Mostly cloudy, with a high near 61. Chance of precipitation is 60%.

    High: 61 °F

    Showers
    Likely

Detailed Forecast

Today
Mostly sunny, with a high near 70. Light and variable wind.
Tonight
Mostly cloudy, with a low around 41. Light and variable wind becoming west northwest around 6 mph.
Sunday
Partly sunny, with a high near 71. Calm wind becoming south southwest 5 to 7 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 39. West southwest wind 6 to 11 mph becoming northwest in the evening.
Monday
A 20 percent chance of showers before noon. Mostly cloudy, with a high near 53. North northwest wind 13 to 18 mph.
Monday Night
Partly cloudy, with a low around 27.
Tuesday
Mostly sunny, with a high near 59.
Tuesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 40.
Wednesday
Showers likely, mainly after noon. Mostly cloudy, with a high near 61. Chance of precipitation is 60%.
Wednesday Night
Showers. Low around 38. Chance of precipitation is 80%.
Thursday
Showers likely. Mostly cloudy, with a high near 53. Chance of precipitation is 60%.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 32.
Friday
Mostly sunny, with a high near 56.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ontario Municipal OR
 44.03°N 117.03°W (Elev. 2185 ft)
Last Update:
12:29 am MDT Mar 28, 2026
Forecast Valid:
10am MDT Mar 28, 2026-6pm MDT Apr 3, 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