Current conditions at
Ontario International Airport (KONT)
Lat: 34.05316°NLon: 117.57685°WElev: 906.0ft.
Clear
52°F
11°C
| Humidity | 76% |
| Wind Speed | N 0 MPH |
| Barometer | 29.97 in (1014.9 mb) |
| Dewpoint | 45°F (7°C) |
| Visibility | 8.00 mi |
| Last update | 07 Jan 12:30 AM PST |
Extended Forecast for
Ontario CA
Overnight

Low: 47 °F
Mostly Cloudy
Wednesday

High: 64 °F
Mostly Sunny
Wednesday Night

Low: 45 °F
Partly Cloudy
Thursday

High: 61 °F
Sunny
Thursday Night

Low: 42 °F
Clear
Friday

High: 63 °F
Sunny
Friday Night

Low: 42 °F
Clear
Saturday

High: 67 °F
Sunny
Saturday Night

Low: 45 °F
Mostly Clear
Detailed Forecast
Overnight
Mostly cloudy, with a low around 47. Calm wind.
Wednesday
Mostly sunny, with a high near 64. Light and variable wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 45. Southwest wind around 5 mph becoming calm.
Thursday
Sunny, with a high near 61. Light and variable wind becoming southeast 5 to 10 mph.
Thursday Night
Clear, with a low around 42. Northeast wind 5 to 10 mph.
Friday
Sunny, with a high near 63.
Friday Night
Clear, with a low around 42.
Saturday
Sunny, with a high near 67.
Saturday Night
Mostly clear, with a low around 45.
Sunday
Sunny, with a high near 71.
Sunday Night
Mostly clear, with a low around 46.
Monday
Sunny, with a high near 72.
Monday Night
Mostly clear, with a low around 47.
Tuesday
Sunny, with a high near 73.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Ontario CA
34.03°N 117.61°W (Elev. 823 ft)
34.03°N 117.61°W (Elev. 823 ft)
12:32 pm PST Jan 6, 2026
12am PST Jan 7, 2026-6pm PST Jan 13, 2026


