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.

light rain,mist

48°F

9°C

Humidity 87%
Wind Speed W 6 MPH
Barometer 29.68 in (1005.08 mb)
Dewpoint 45°F (7°C)
Visibility 6.00 mi
Wind Chill45°F (7°C)
Last update 12 Apr 12:05 PM MDT
Extended Forecast for

Ontario Municipal OR

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm, mainly before 3pm, then a chance of showers and thunderstorms after 3pm. High near 56. Southwest wind 7 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 56 °F

    Showers

  • Tonight

    Tonight: Showers likely, mainly after 5am. Mostly cloudy, with a low around 41. Southwest wind 6 to 10 mph becoming southeast in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 60%.

    Low: 41 °F

    Showers
    Likely

  • Monday

    Monday: Showers likely, mainly before noon. Mostly cloudy, with a high near 56. South southwest wind 6 to 10 mph. Chance of precipitation is 70%.

    High: 56 °F

    Showers
    Likely then
    Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 38. Northwest wind around 7 mph.

    Low: 38 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 62. West northwest wind 6 to 11 mph becoming southwest in the afternoon.

    High: 62 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers after midnight. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers, with thunderstorms also possible after noon. High near 54. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 54 °F

    Showers

  • Wednesday Night

    Wednesday Night: Rain showers likely before 3am, then a slight chance of snow showers. Mostly cloudy, with a low around 31. Chance of precipitation is 60%.

    Low: 31 °F

    Showers
    Likely then
    Slight Chance
    Rain/Snow

  • Thursday

    Thursday: A slight chance of snow showers before 3pm, then a slight chance of rain showers. Mostly sunny, with a high near 50. Chance of precipitation is 20%.

    High: 50 °F

    Slight Chance
    Snow Showers
    then Slight
    Chance
    Rain/Snow

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm, mainly before 3pm, then a chance of showers and thunderstorms after 3pm. High near 56. Southwest wind 7 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers likely, mainly after 5am. Mostly cloudy, with a low around 41. Southwest wind 6 to 10 mph becoming southeast in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 60%.
Monday
Showers likely, mainly before noon. Mostly cloudy, with a high near 56. South southwest wind 6 to 10 mph. Chance of precipitation is 70%.
Monday Night
Mostly cloudy, with a low around 38. Northwest wind around 7 mph.
Tuesday
Mostly sunny, with a high near 62. West northwest wind 6 to 11 mph becoming southwest in the afternoon.
Tuesday Night
A 40 percent chance of showers after midnight. Mostly cloudy, with a low around 44.
Wednesday
Showers, with thunderstorms also possible after noon. High near 54. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Rain showers likely before 3am, then a slight chance of snow showers. Mostly cloudy, with a low around 31. Chance of precipitation is 60%.
Thursday
A slight chance of snow showers before 3pm, then a slight chance of rain showers. Mostly sunny, with a high near 50. Chance of precipitation is 20%.
Thursday Night
Mostly clear, with a low around 28.
Friday
Sunny, with a high near 56.
Friday Night
Mostly clear, with a low around 32.
Saturday
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 117.03°W (Elev. 2185 ft)
Last Update:
12:32 am MDT Apr 12, 2026
Forecast Valid:
12pm MDT Apr 12, 2026-6pm MDT Apr 18, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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