Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Ontario Municipal Airport (KONO)

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

Clear

63°F

17°C

Humidity 45%
Wind Speed WSW 10 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 19 Aug 06:35 AM MDT
Detailed forecast for

Oregon Lower Treasure Valley

Rest Of Today
Mostly clear. Highs 93 to 98. Northwest winds up to 10 mph early this morning, becoming light this afternoon.
Tonight
Mostly clear. Patchy smoke after midnight. Lows 60 to 68. Light winds in the evening, becoming northwest around 10 mph after midnight.
Thursday
Patchy smoke in the morning. Sunny. Highs 98 to 103. Northwest winds up to 10 mph in the morning, shifting to south in the afternoon.
Thursday Night
Increasing clouds. Lows 64 to 70. Northwest winds 10 to 15 mph.
Friday
Partly sunny. Highs 99 to 104. Northwest winds up to 10 mph in the morning, shifting to east in the afternoon.
Friday Night
Mostly cloudy. Lows 67 to 72.
Saturday
Mostly sunny. Highs 93 to 98.
Saturday Night Through Sunday Night
Mostly clear. Lows 59 to 67. Highs 88 to 93.
Monday Through Tuesday
Partly cloudy. Highs 90 to 96. Lows 62 to 68.



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402 AM MDT Wed Aug 19 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database