Severe Thunderstorms and Flash Flooding for the Central U.S. through Tuesday; Dangerous East Coast Beach Conditions

Thunderstorms ahead of an approaching cold front will impact much of the Central U.S. through Tuesday. Severe thunderstorms and flash flooding are forecast for portions of the central/southern Plains and the Mississippi, Ohio, and Tennessee Valleys. Meanwhile, dangerous waves and rip currents will impact portions of the East Coast as tropical activity increases in the Atlantic. Read More >

Current conditions at

Ontario Municipal Airport (KONO)

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

Clear

77°F

25°C

Humidity 17%
Wind Speed NNW 6 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 22 Sep 05:30 PM MDT
Detailed forecast for

Oregon Lower Treasure Valley

Tonight
Clear. Areas of smoke. Lows 43 to 49. Northwest winds 10 to 15 mph.
Tuesday
Sunny. Areas of smoke in the morning, then patchy smoke in the afternoon. Highs 76 to 81. East winds up to 10 mph.
Tuesday Night
Mostly clear. Lows 45 to 51. North winds up to 10 mph.
Wednesday
Sunny. Highs 81 to 86. Light winds in the morning, becoming southeast around 10 mph in the afternoon.
Wednesday Night
Clear. Lows 47 to 54. Light winds.
Thursday
Sunny. Highs 82 to 87.
Thursday Night
Clear. Lows 49 to 55.
Friday Through Sunday
Mostly clear. Highs 79 to 86. Lows 47 to 56.
Sunday Night And Monday
Partly cloudy. Lows 51 to 56. Highs 78 to 83.



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307 PM MDT Mon Sep 22 2025
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database