Hazardous Weather Conditions
Current conditions at
Fontana-Arrow Highway (CQ057)
Lat: 34.10056°NLon: 117.49222°WElev: 1191.0ft.NA
57°F
14°C
| Humidity | 59% |
| Wind Speed | N 2 MPH |
| Barometer | NA |
| Dewpoint | 43°F (6°C) |
| Visibility | NA |
| Last update | 31 Dec 05:00 AM PST |
Extended Forecast for
4 Miles SSW Fontana CA
Flood Watch December 31, 10:00pm until January 1, 10:00pm
Today

High: 66 °F
Showers
Tonight

Low: 53 °F
Heavy Rain
New Year's Day
High: 63 °F
Heavy Rain
Thursday Night

Low: 53 °F
Chance
ShowersFriday

High: 64 °F
Partly Sunny
Friday Night

Low: 51 °F
Slight Chance
ShowersSaturday

High: 63 °F
Showers
LikelySaturday Night

Low: 50 °F
Showers
LikelySunday

High: 63 °F
Chance
Showers
Detailed Forecast
Today
Showers, mainly after 10am. High near 66. Northeast wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Showers, with thunderstorms also possible after 10pm. Some of the storms could produce heavy rainfall. Low around 53. East wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
New Year's Day
Showers and possibly a thunderstorm, mainly before 4pm, then a chance of showers and thunderstorms after 4pm. Some of the storms could produce heavy rainfall. High near 63. Southeast wind around 5 mph becoming south in the afternoon. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday Night
A chance of showers, mainly before 10pm. Mostly cloudy, with a low around 53. South wind around 5 mph becoming calm. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Partly sunny, with a high near 64. East wind around 5 mph becoming south in the afternoon.
Friday Night
A slight chance of showers. Mostly cloudy, with a low around 51. Chance of precipitation is 20%.
Saturday
Showers likely, mainly after 4pm. Mostly cloudy, with a high near 63. Chance of precipitation is 60%.
Saturday Night
Showers likely, mainly before 10pm. Mostly cloudy, with a low around 50.
Sunday
A chance of showers. Mostly cloudy, with a high near 63.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 48.
Monday
A chance of showers. Mostly cloudy, with a high near 63.
Monday Night
A chance of showers. Mostly cloudy, with a low around 48.
Tuesday
A chance of showers. Mostly cloudy, with a high near 64.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
4 Miles SSW Fontana CA
34.05°N 117.47°W (Elev. 951 ft)
34.05°N 117.47°W (Elev. 951 ft)
12:07 am PST Dec 31, 2025
6am PST Dec 31, 2025-6pm PST Jan 6, 2026



