Current conditions at
Ontario International Airport (KONT)
Lat: 34.05316°NLon: 117.57685°WElev: 906.0ft.
Partly Cloudy
66°F
19°C
| Humidity | 68% |
| Wind Speed | SW 12 MPH |
| Barometer | 30.02 in (1016.59 mb) |
| Dewpoint | 55°F (13°C) |
| Visibility | 8.00 mi |
| Last update | 12 May 11:05 AM PDT |
Extended Forecast for
Ontario International Arpt CA
Today

High: 82 °F
Sunny
Tonight

Low: 58 °F
Increasing
CloudsWednesday

High: 79 °F
Becoming
SunnyWednesday Night

Low: 57 °F
Mostly Clear
Thursday

High: 82 °F
Sunny
Thursday Night

Low: 57 °F
Clear
Friday

High: 82 °F
Sunny
Friday Night

Low: 57 °F
Mostly Clear
Saturday

High: 81 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 82. West wind around 15 mph, with gusts as high as 30 mph.
Tonight
Increasing clouds, with a low around 58. West wind 5 to 15 mph, with gusts as high as 20 mph.
Wednesday
Cloudy through mid morning, then gradual clearing, with a high near 79. Southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Wednesday Night
Mostly clear, with a low around 57. West wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 20 mph.
Thursday
Sunny, with a high near 82. Light southwest wind becoming west 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Thursday Night
Clear, with a low around 57.
Friday
Sunny, with a high near 82.
Friday Night
Mostly clear, with a low around 57.
Saturday
Sunny, with a high near 81.
Saturday Night
Mostly clear, with a low around 57.
Sunday
Sunny, with a high near 82.
Sunday Night
Mostly clear, with a low around 58.
Monday
Sunny, with a high near 86.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Ontario International Arpt CA
34.06°N 117.58°W (Elev. 906 ft)
34.06°N 117.58°W (Elev. 906 ft)
12:40 am PDT May 12, 2026
11am PDT May 12, 2026-6pm PDT May 18, 2026


