Hazardous Weather Conditions
Current conditions at
Ontario International Airport (KONT)
Lat: 34.05316°NLon: 117.57685°WElev: 906.0ft.
Clear
77°F
25°C
| Humidity | 23% |
| Wind Speed | N 0 MPH |
| Barometer | 30.05 in (1017.61 mb) |
| Dewpoint | 37°F (3°C) |
| Visibility | 10.00 mi |
| Heat Index | 77°F (25°C) |
| Last update | 12 Mar 08:20 PM PDT |
Extended Forecast for
Ontario CA
Heat Advisory until March 13, 08:00pm
NOW until 8:00pm Fri

Heat Advisory
Tonight

Low: 62 °F
Clear
Friday

High: 93 °F
Increasing
CloudsFriday Night

Low: 62 °F
Mostly Cloudy
Saturday

High: 87 °F
Becoming
SunnySaturday Night

Low: 58 °F
Clear
Sunday

High: 93 °F
Mostly Sunny
Sunday Night

Low: 62 °F
Partly Cloudy
Monday

High: 98 °F
Sunny
Detailed Forecast
Tonight
Clear, with a low around 62. West wind around 5 mph becoming calm.
Friday
Increasing clouds, with a high near 93. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 62. West wind 5 to 10 mph becoming light and variable in the evening.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 87. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Clear, with a low around 58. West wind 5 to 10 mph becoming light and variable in the evening.
Sunday
Mostly sunny, with a high near 93.
Sunday Night
Partly cloudy, with a low around 62.
Monday
Sunny, with a high near 98.
Monday Night
Mostly clear, with a low around 66.
Tuesday
Sunny, with a high near 100.
Tuesday Night
Clear, with a low around 66.
Wednesday
Sunny, with a high near 99.
Wednesday Night
Clear, with a low around 65.
Thursday
Sunny, with a high near 100.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
Ontario CA
34.05°N 117.61°W (Elev. 902 ft)
34.05°N 117.61°W (Elev. 902 ft)
12:13 pm PDT Mar 12, 2026
8pm PDT Mar 12, 2026-6pm PDT Mar 19, 2026



