Current conditions at

Ontario Municipal Airport (KONO)

Lat: 44.01424° N Lon: 117.00808° W Elev: 2185.0 ft.

Overcast

52°F

11°C

Humidity 50%
Wind Speed NNW 14 MPH
Barometer 30.04 in (1017.27 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 30 Mar 01:20 PM MDT
Detailed forecast for

Oregon Lower Treasure Valley

Rest Of Today
Mostly cloudy with a 30 percent chance of showers. Much cooler with highs 54 to 59. North winds 10 to 15 mph with gusts to 25 mph.
Tonight
A chance of rain showers in the evening, then rain and snow showers likely after midnight. Chance of precipitation 60 percent. No snow accumulation. Lows 36 to 41. Breezy. North winds 10 to 20 mph in the evening, becoming northwest up to 10 mph after midnight.
Tuesday
Patchy fog in the morning. Rain showers likely. Snow showers likely in the morning, then a slight chance of thunderstorms in the afternoon. Chance of precipitation 60 percent. No snow accumulation. Highs 52 to 57. Light winds.
Tuesday Night
Rain showers likely with a slight chance of thunderstorms in the evening, then a chance of rain showers after midnight. Areas of fog after midnight. Chance of rain 70 percent. Lows 39 to 44. Light winds.
Wednesday
Areas of fog in the morning. A chance of rain showers in the morning, then rain showers with a slight chance of thunderstorms in the afternoon. Chance of rain 90 percent. Highs 55 to 60. Light winds in the morning, becoming south 10 to 15 mph with gusts to 25 mph in the afternoon.
Wednesday Night
A slight chance of thunderstorms in the evening. Rain showers. Chance of rain near 100 percent. Lows 37 to 42. Breezy.
Thursday
Rain and snow showers likely in the morning, then rain showers with a slight chance of thunderstorms in the afternoon. Chance of precipitation 80 percent. Little snow accumulation expected. Highs 50 to 55. Windy.
Thursday Night
Partly cloudy with a slight chance of rain showers in the evening, then mostly clear after midnight. Chance of rain 20 percent. Lows 29 to 34. Breezy.
Friday And Friday Night
Mostly clear. Highs 54 to 60. Lows 32 to 37.
Saturday And Saturday Night
Mostly clear. Highs 60 to 65. Lows 36 to 41.
Sunday
Mostly sunny. Highs 64 to 69.



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1237 PM MDT Mon Mar 30 2026
 
 

Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database