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

65°F

18°C

Humidity 24%
Wind Speed WNW 11 MPH
Barometer 29.88 in (1011.85 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 24 May 04:53 AM MDT
Extended Forecast for

Ontario Municipal OR

  • Today

    Today: Sunny, with a high near 88. West northwest wind 5 to 10 mph becoming south in the afternoon.

    High: 88 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 55. West southwest wind 5 to 10 mph becoming light and variable after midnight.

    Low: 55 °F

    Mostly Clear

  • Memorial Day

    Memorial Day: Increasing clouds and hot, with a high near 92. West wind 5 to 14 mph becoming south in the afternoon. Winds could gust as high as 25 mph.

    High: 92 °F

    Hot

  • Monday Night

    Monday Night: Patchy blowing dust between midnight and 3am. Mostly cloudy, with a low around 54. Breezy, with a south wind 11 to 20 mph becoming northwest after midnight. Winds could gust as high as 34 mph.

    Low: 54 °F

    Mostly Cloudy
    then Patchy
    Blowing Dust
    and Breezy

  • Tuesday

    Tuesday: Partly sunny, with a high near 64. Northwest wind 15 to 17 mph, with gusts as high as 30 mph.

    High: 64 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 46. Chance of precipitation is 40%.

    Low: 46 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers before noon. Partly sunny, with a high near 72.

    High: 72 °F

    Chance
    Showers then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers, mainly before midnight. Partly cloudy, with a low around 48.

    Low: 48 °F

    Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 88. West northwest wind 5 to 10 mph becoming south in the afternoon.
Tonight
Mostly clear, with a low around 55. West southwest wind 5 to 10 mph becoming light and variable after midnight.
Memorial Day
Increasing clouds and hot, with a high near 92. West wind 5 to 14 mph becoming south in the afternoon. Winds could gust as high as 25 mph.
Monday Night
Patchy blowing dust between midnight and 3am. Mostly cloudy, with a low around 54. Breezy, with a south wind 11 to 20 mph becoming northwest after midnight. Winds could gust as high as 34 mph.
Tuesday
Partly sunny, with a high near 64. Northwest wind 15 to 17 mph, with gusts as high as 30 mph.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 46. Chance of precipitation is 40%.
Wednesday
A 30 percent chance of showers before noon. Partly sunny, with a high near 72.
Wednesday Night
A 30 percent chance of showers, mainly before midnight. Partly cloudy, with a low around 48.
Thursday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 80.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 51. Chance of precipitation is 40%.
Friday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 76.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 49.
Saturday
Mostly sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ontario Municipal OR
 44.01°N 117°W (Elev. 2129 ft)
Last Update:
12:29 am MDT May 24, 2026
Forecast Valid:
5am MDT May 24, 2026-6pm MDT May 30, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation