Hot Temperatures in the Northwest U.S.; Excessive Rainfall Potential in the Southwest U.S.

Hot to extremely hot daytime temperatures remain in place across coastal southern California and the interior Northwest, with the Northwest carrying the potential for record-breaking high temperatures. A combination of monsoonal moisture and tropical moisture ahead of tropical cyclone Lorena will bring a marginal to slight risk of excessive rainfall across the southwest U.S. this week. Read More >

Current conditions at

Ontario Municipal Airport (KONO)

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

Clear

70°F

21°C

Humidity	64%
Wind Speed	N 0 MPH
Barometer	30.01 in (1016.26 mb)
Dewpoint	57°F (14°C)
Visibility	10.00 mi
Last update	02 Sep 10:45 PM MDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Detailed forecast for

Oregon Lower Treasure Valley

Tonight

Partly cloudy. Lows 61 to 66. West winds up to 10 mph.

Wednesday

Mostly sunny. Patchy smoke. Highs 93 to 98. Light winds.

Wednesday Night

Partly cloudy. Patchy smoke. Lows 63 to 69. West winds up to 10 mph.

Thursday

Patchy smoke in the morning. Mostly sunny. Highs 93 to 98. West winds up to 10 mph.

Thursday Night

Partly cloudy. Lows 62 to 68. West winds up to 10 mph with gusts to 20 mph.

Friday

Mostly sunny. Highs 90 to 95.

Friday Night

Mostly cloudy. A chance of showers, mainly after midnight. Chance of rain 30 percent. Lows 63 to 69.

Saturday

Decreasing clouds. A 40 percent chance of showers. Highs 82 to 87.

Saturday Night

Mostly cloudy with a chance of showers in the evening, then partly cloudy with a slight chance of showers after midnight. Chance of rain 30 percent. Lows 58 to 63.

Sunday Through Monday

Partly cloudy with a 20 percent chance of showers. Highs 80 to 87. Lows 58 to 63.

Monday Night And Tuesday

Mostly cloudy. A 30 percent chance of showers. Lows 55 to 60. Highs 77 to 82.