Areas of Dangerous Heat and Heavy Rainfall Today

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley today. Heat Advisories remain in effect. Heavy to excessive rainfall today could bring areas of flooding to parts of the northern High Plains and Midwest into the Ohio Valley. Flood Watches remain in effect. Read More >

Current conditions at

Ontario Municipal Airport (KONO)

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

Clear

81°F

27°C

Humidity 30%
Wind Speed N 3 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 20 Sep 04:53 PM MDT
Detailed forecast for

Oregon Lower Treasure Valley

Tonight
Clear. Lows 49 to 55. Light winds.
Monday
Sunny. Highs 81 to 86. East winds up to 10 mph.
Monday Night
Decreasing clouds. Lows 51 to 57. Light winds.
Tuesday
Mostly sunny. Highs 83 to 88. Light winds.
Tuesday Night
Partly cloudy in the evening, then clearing. Lows 51 to 57. North winds up to 10 mph.
Wednesday
Sunny. Highs 81 to 86.
Wednesday Night Through Thursday Night
Partly cloudy. Lows 51 to 59. Highs 84 to 89.
Friday
Partly cloudy with a 20 percent chance of showers. Highs 75 to 80.
Friday Night
Partly cloudy with a 20 percent chance of showers. Cooler with lows 44 to 49.
Saturday
Mostly sunny. Highs 67 to 72.
Saturday Night
Increasing clouds. Lows 42 to 47.
Sunday
Mostly sunny. Highs 69 to 74.



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230 PM MDT Sun Sep 20 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database