Extreme Heat in the Southwest; Severe Weather in the Northern Plains; Heavy Rain in the East

Extreme heat continues across the Southwest as temperatures may top 120 degrees. The heat may expand across the West and south-central U.S. into the middle of the month. Severe thunderstorms capable of severe wind gusts and large hail will be the primary hazards today across the northern Plains into the upper Midwest. Rainfall could be locally heavy across the Eastern U.S. today. Read More >

Hazardous Weather Conditions

Current conditions at

Ontario Municipal Airport (KONO)

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

haze

67°F

19°C

Humidity 31%
Wind Speed NNW 6 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 36°F (2°C)
Visibility 3.00 mi
Last update 03 Aug 11:53 PM MDT
Detailed forecast for

Oregon Lower Treasure Valley

Tonight
Mostly clear. Smoke. Lows 54 to 59. Northwest winds 10 to 15 mph with gusts to 25 mph.
Tuesday
Sunny. Smoke in the morning, then areas of smoke in the afternoon. Highs 87 to 92. Northwest winds 10 to 15 mph in the morning, becoming light in the afternoon.
Tuesday Night
Increasing clouds. Smoke. Lows 55 to 61. Northeast winds around 10 mph in the evening, shifting to northwest after midnight. Gusts to 20 mph.
Wednesday
Areas of smoke in the morning. Sunny. Highs 92 to 97. Northwest winds up to 10 mph in the morning, becoming light in the afternoon.
Wednesday Night
Mostly clear. Lows 58 to 65. Light winds in the evening, becoming west around 10 mph after midnight.
Thursday
Sunny. Highs 98 to 103.
Thursday Night Through Sunday Night
Mostly clear. Lows 62 to 70. Highs 94 to 104.
Monday
Sunny. Highs 92 to 97.



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230 PM MDT Mon Aug 3 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database