Current conditions at
Ontario International Airport (KONT)
Lat: 34.05316°NLon: 117.57685°WElev: 906.0ft.
Clear
79°F
26°C
| Humidity | 36% |
| Wind Speed | N 0 MPH |
| Barometer | 29.97 in (1014.9 mb) |
| Dewpoint | 50°F (10°C) |
| Visibility | 10.00 mi |
| Heat Index | 79°F (26°C) |
| Last update | 05 Sep 10:20 AM PDT |
Extended Forecast for
3 Miles SSE Rancho Cucamonga CA
Today
High: 90 °F
Sunny
Tonight
Low: 68 °F
Slight Chance
Showers then
Slight Chance
T-stormsSunday
High: 82 °F
Showers
LikelySunday Night
Low: 68 °F
Slight Chance
Showers then
Partly CloudyLabor Day
High: 90 °F
Sunny
Monday Night
Low: 68 °F
Mostly Clear
Tuesday
High: 93 °F
Sunny
Tuesday Night
Low: 70 °F
Mostly Clear
Wednesday
High: 95 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 90. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Tonight
A slight chance of showers between 11pm and 5am, then a slight chance of showers and thunderstorms after 5am. Increasing clouds, with a low around 68. Southwest wind 5 to 10 mph becoming light and variable in the evening. Chance of precipitation is 20%.
Sunday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 82. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A slight chance of showers before 11pm. Partly cloudy, with a low around 68. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 10%.
Labor Day
Sunny, with a high near 90. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Monday Night
Mostly clear, with a low around 68.
Tuesday
Sunny, with a high near 93.
Tuesday Night
Mostly clear, with a low around 70.
Wednesday
Sunny, with a high near 95.
Wednesday Night
Mostly clear, with a low around 71.
Thursday
Sunny, with a high near 95.
Thursday Night
Mostly clear, with a low around 69.
Friday
Sunny, with a high near 92.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles SSE Rancho Cucamonga CA
34.09°N 117.53°W (Elev. 1106 ft)
34.09°N 117.53°W (Elev. 1106 ft)
12:11 am PDT Sep 5, 2026
10am PDT Sep 5, 2026-6pm PDT Sep 11, 2026
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