Current conditions at
Ontario International Airport (KONT)
Lat: 34.05316°NLon: 117.57685°WElev: 906.0ft.
Overcast
70°F
21°C
| Humidity | 68% |
| Wind Speed | WSW 8 MPH |
| Barometer | 30.02 in (1016.59 mb) |
| Dewpoint | 59°F (15°C) |
| Visibility | 10.00 mi |
| Last update | 03 Oct 11:20 AM PDT |
Extended Forecast for
Ontario CA
Today
High: 77 °F
Sunny
Tonight
Low: 55 °F
Mostly Clear
Saturday
High: 79 °F
Sunny
Saturday Night
Low: 55 °F
Clear
Sunday
High: 80 °F
Sunny
Sunday Night
Low: 56 °F
Mostly Clear
Monday
High: 77 °F
Mostly Sunny
Monday Night
Low: 55 °F
Mostly Clear
Tuesday
High: 78 °F
Patchy Fog
then Sunny
Detailed Forecast
Today
Sunny, with a high near 77. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 55. Southwest wind 5 to 10 mph becoming east after midnight.
Saturday
Sunny, with a high near 79. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Clear, with a low around 55. West wind 5 to 10 mph becoming light southwest in the evening. Winds could gust as high as 20 mph.
Sunday
Sunny, with a high near 80. Light west wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Mostly clear, with a low around 56.
Monday
Mostly sunny, with a high near 77.
Monday Night
Mostly clear, with a low around 55.
Tuesday
Patchy fog before 11am. Otherwise, sunny, with a high near 78.
Tuesday Night
Mostly clear, with a low around 56.
Wednesday
Sunny, with a high near 82.
Wednesday Night
Mostly clear, with a low around 58.
Thursday
Patchy fog. Otherwise, mostly sunny, with a high near 82.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Ontario CA
34.03°N 117.61°W (Elev. 823 ft)
34.03°N 117.61°W (Elev. 823 ft)
5:30 am PDT Oct 3, 2025
11am PDT Oct 3, 2025-6pm PDT Oct 9, 2025
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
