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Hazardous Weather Conditions

Current conditions at

Ontario International Airport (KONT)

Lat: 34.05316°NLon: 117.57685°WElev: 906.0ft.

Clear

75°F

24°C

Humidity	69%
Wind Speed	N 0 MPH
Barometer	29.91 in (1012.87 mb)
Dewpoint	64°F (18°C)
Visibility	10.00 mi
Last update	08 Sep 03:35 AM PDT

More Information:

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

Extended Forecast for

3 Miles SSE Rancho Cucamonga CA

Heat Advisory September 9, 08:00pm until September 10, 08:00pm

Extreme Heat Warning September 8, 03:46am until September 9, 08:00pm

Click here for hazard details and duration

Heat Advisory

Extreme Heat Warning

Extreme Heat Warning September 8, 03:46am until September 9, 08:00pm
NOW until 8:00pm Wed
Extreme Heat Warning
Overnight
Low: 72 °F
Partly Cloudy
Tuesday
High: 99 °F
Mostly Sunny
Tuesday Night
Low: 74 °F
Mostly Clear
Wednesday
High: 101 °F
Sunny
Wednesday Night
Low: 75 °F
Mostly Clear
Thursday
High: 96 °F
Sunny
Thursday Night
Low: 72 °F
Mostly Clear
Friday
High: 92 °F
Sunny

Detailed Forecast

Overnight

Partly cloudy, with a low around 72. Calm wind.

Tuesday

Mostly sunny, with a high near 99. Light and variable wind becoming west 5 to 10 mph in the afternoon.

Tuesday Night

Mostly clear, with a low around 74. West wind 5 to 10 mph becoming light and variable in the evening.

Wednesday

Sunny, with a high near 101. Heat index values as high as 106. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

Wednesday Night

Mostly clear, with a low around 75. West wind around 5 mph becoming calm.

Thursday

Sunny, with a high near 96.

Thursday Night

Mostly clear, with a low around 72.

Friday

Sunny, with a high near 92.

Friday Night

Mostly clear, with a low around 67.

Saturday

Sunny, with a high near 89.