Severe Thunderstorms and Heavy Rainfall for the Southwest; Heat Spreads Across the Center of the Nation

Moisture will continue to move into areas of the West. This will increase showers and thunderstorms coverage and intensity, with the risk of flash flooding and damaging wind gusts. Meanwhile, heat across the Southwest will expand into the center of the nation this weekend into early next week. Trends favor this heat will spread across the Ohio Valley, mid-Atlantic next week. Read More >

Current conditions at

Ontario Municipal Airport (KONO)

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

Clear

52°F

11°C

Humidity 57%
Wind Speed WSW 6 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 30 Aug 08:00 AM MDT
Detailed forecast for

Oregon Lower Treasure Valley

Today
Sunny. Highs 76 to 81. West winds 10 to 15 mph this morning, becoming light this afternoon.
Tonight
Mostly clear. Lows 45 to 53. Light winds in the evening, becoming west up to 10 mph after midnight.
Monday
Sunny. Highs 85 to 90. Light winds in the morning, becoming southeast up to 10 mph in the afternoon.
Monday Night
Increasing clouds. Warmer with lows 55 to 61. Light winds.
Tuesday
Partly sunny. Highs 85 to 90. Light winds.
Tuesday Night
Increasing clouds. Lows 54 to 60.
Wednesday
Mostly sunny. Highs 76 to 81.
Wednesday Night
Increasing clouds. A slight chance of showers after midnight. Chance of rain 20 percent. Lows 50 to 56.
Thursday
Mostly cloudy in the morning, then becoming partly sunny. A 30 percent chance of showers. Highs 71 to 76.
Thursday Night
Mostly cloudy with a slight chance of showers in the evening, then partly cloudy after midnight. Patchy fog after midnight. Chance of rain 20 percent. Lows 47 to 53.
Friday
Partly cloudy. A slight chance of showers in the morning. Patchy fog in the morning. Chance of rain 20 percent. Highs 74 to 79.
Friday Night And Saturday
Partly cloudy. Lows 48 to 54. Highs 78 to 83.



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230 AM MDT Sun Aug 30 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database