Hazardous Weather Conditions
Current conditions at
Ontario International Airport (KONT)
Lat: 34.05316°NLon: 117.57685°WElev: 906.0ft.
Clear
81°F
27°C
| Humidity | 36% |
| Wind Speed | N 0 MPH |
| Barometer | 29.95 in (1014.22 mb) |
| Dewpoint | 52°F (11°C) |
| Visibility | 10.00 mi |
| Heat Index | 80°F (27°C) |
| Last update | 05 Oct 01:55 AM PDT |
Extended Forecast for
Ontario International Arpt CA
Extreme Heat Warning October 5, 02:23am until October 8, 08:00pm
NOW until 8:00pm Thu
Extreme Heat Warning
Overnight
Low: 74 °F
Clear
Monday
High: 101 °F
Sunny
Monday Night
Low: 73 °F
Mostly Clear
Tuesday
High: 100 °F
Sunny
Tuesday Night
Low: 72 °F
Clear
Wednesday
High: 103 °F
Sunny
Wednesday Night
Low: 70 °F
Clear
Thursday
High: 99 °F
Sunny
Detailed Forecast
Overnight
Clear, with a low around 74. Northeast wind around 5 mph becoming calm.
Monday
Sunny, with a high near 101. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 73. West wind around 5 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 100. Northeast wind 5 to 10 mph becoming southwest in the afternoon.
Tuesday Night
Clear, with a low around 72. Southwest wind 5 to 10 mph becoming light and variable in the evening.
Wednesday
Sunny, with a high near 103.
Wednesday Night
Clear, with a low around 70.
Thursday
Sunny, with a high near 99.
Thursday Night
Clear, with a low around 71.
Friday
Sunny, with a high near 97.
Friday Night
Mostly clear, with a low around 69.
Saturday
Sunny, with a high near 89.
Saturday Night
Mostly clear, with a low around 65.
Sunday
Mostly sunny, with a high near 82.
Additional Forecasts and Information
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Point Forecast:
Ontario International Arpt CA
34.05°N 117.61°W (Elev. 902 ft)
34.05°N 117.61°W (Elev. 902 ft)
2:20 am PDT Oct 5, 2026
2am PDT Oct 5, 2026-6pm PDT Oct 11, 2026
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