Hazardous Weather Conditions
Current conditions at
Fontana-Arrow Highway (CQ057)
Lat: 34.10056°NLon: 117.49222°WElev: 1191.0ft.NA
63°F
17°C
| Humidity | 79% |
| Wind Speed | NE 5 MPH |
| Barometer | NA |
| Dewpoint | 56°F (13°C) |
| Visibility | NA |
| Last update | 14 Nov 10:00 AM PST |
Extended Forecast for
Rancho Cucamonga CA
Flood Watch November 15, 04:00am until November 15, 10:00pm
Today

High: 65 °F
Showers
Tonight

Low: 56 °F
Showers
Saturday

High: 63 °F
Heavy Rain
Saturday Night

Low: 49 °F
Showers
Sunday

High: 59 °F
Chance
ShowersSunday Night

Low: 49 °F
Chance
ShowersMonday

High: 59 °F
Showers
LikelyMonday Night

Low: 46 °F
Showers
LikelyTuesday

High: 59 °F
Chance
Showers
Detailed Forecast
Today
Showers, with thunderstorms also possible after 4pm. High near 65. North wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and possibly a thunderstorm before 10pm, then showers between 10pm and 1am, then showers and possibly a thunderstorm after 1am. Low around 56. Northeast wind 5 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 63. East wind 5 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Saturday Night
Showers and possibly a thunderstorm. Low around 49. Southwest wind 5 to 10 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
A chance of showers. Cloudy, with a high near 59. Southwest wind 5 to 10 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 49. Chance of precipitation is 50%.
Monday
Showers likely. Mostly cloudy, with a high near 59. Chance of precipitation is 60%.
Monday Night
Showers likely. Mostly cloudy, with a low around 46.
Tuesday
A chance of showers. Partly sunny, with a high near 59.
Tuesday Night
A chance of showers, mainly before 10pm. Mostly cloudy, with a low around 46.
Wednesday
Mostly sunny, with a high near 61.
Wednesday Night
Partly cloudy, with a low around 46.
Thursday
A slight chance of showers. Partly sunny, with a high near 60.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Rancho Cucamonga CA
34.13°N 117.57°W (Elev. 1362 ft)
34.13°N 117.57°W (Elev. 1362 ft)
2:37 am PST Nov 14, 2025
11am PST Nov 14, 2025-6pm PST Nov 20, 2025



