Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

Ontario Municipal Airport (KONO)

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

Clear

72°F

22°C

Humidity 49%
Wind Speed N 4 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 19 Sep 12:53 PM MDT
Detailed forecast for

Oregon Lower Treasure Valley

Tonight
Mostly clear. Lows 50 to 56. Light winds.
Sunday
Sunny. Highs 80 to 85. Light winds.
Sunday Night
Mostly clear. Lows 49 to 55. Light winds.
Monday
Sunny. Highs 82 to 87. Light winds.
Monday Night
Partly cloudy. Lows 51 to 57. Light winds.
Tuesday Through Wednesday
Mostly clear. Highs 82 to 88. Lows 52 to 58.
Wednesday Night
Partly cloudy. Lows 50 to 56.
Thursday
Sunny. Highs 81 to 86.
Thursday Night Through Friday Night
Partly cloudy. Lows 48 to 56. Highs 79 to 84.
Saturday
Mostly sunny. Highs 74 to 79.



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1236 PM MDT Sat Sep 19 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database