Hazardous Weather Conditions
Current conditions at
Ontario International Airport (KONT)
Lat: 34.05316°NLon: 117.57685°WElev: 906.0ft.
Mostly Cloudy
61°F
16°C
| Humidity | 77% |
| Wind Speed | ESE 3 MPH |
| Barometer | 30.15 in (1021.0 mb) |
| Dewpoint | 54°F (12°C) |
| Visibility | 10.00 mi |
| Last update | 25 Dec 10:05 AM PST |
Extended Forecast for
3 Miles SSE Rancho Cucamonga CA
Flood Watch December 26, 12:00am until December 26, 04:00pm
Christmas Day
High: 63 °F
Showers
LikelyTonight
Low: 51 °F
Showers
Friday
High: 59 °F
Heavy Rain
Friday Night
Low: 46 °F
Showers
Likely then
Chance
ShowersSaturday
High: 58 °F
Slight Chance
Showers then
SunnySaturday Night
Low: 42 °F
Mostly Clear
Sunday
High: 63 °F
Sunny
Sunday Night
Low: 45 °F
Mostly Clear
Monday
High: 66 °F
Sunny
Detailed Forecast
Christmas Day
Showers likely, mainly after 4pm. Mostly cloudy, with a high near 63. Southwest wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Showers. Low around 51. Calm wind becoming south around 5 mph after midnight. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Showers, with thunderstorms also possible after 10am. Some of the storms could produce heavy rainfall. High near 59. South wind 5 to 10 mph becoming north in the afternoon. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Friday Night
Showers likely and possibly a thunderstorm before 10pm, then a chance of showers. Mostly cloudy, with a low around 46. South wind around 5 mph becoming calm after midnight. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A slight chance of showers before 10am. Mostly sunny, with a high near 58. Calm wind becoming south around 5 mph. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 42.
Sunday
Sunny, with a high near 63.
Sunday Night
Mostly clear, with a low around 45.
Monday
Sunny, with a high near 66.
Monday Night
Mostly clear, with a low around 46.
Tuesday
Sunny, with a high near 71.
Tuesday Night
A slight chance of showers. Partly cloudy, with a low around 48.
Wednesday
A chance of showers. Partly sunny, with a high near 71.
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)
3:43 am PST Dec 25, 2025
10am PST Dec 25, 2025-6pm PST Dec 31, 2025
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