Hazardous Weather Conditions
Current conditions at
Fontana-Arrow Highway (CQ057)
Lat: 34.10056°NLon: 117.49222°WElev: 1191.0ft.NA
77°F
25°C
| Humidity | 63% |
| Wind Speed | WSW 1 MPH |
| Barometer | NA |
| Dewpoint | 64°F (18°C) |
| Visibility | NA |
| Heat Index | 79°F (26°C) |
| Last update | 02 Aug 01:00 AM PDT |
Extended Forecast for
5 Miles S Fontana CA
Extreme Heat Warning August 2, 02:53am until August 2, 08:00pm
NOW until 8:00pm Sun
Extreme Heat Warning
Overnight
Low: 68 °F
Mostly Clear
Sunday
High: 99 °F
Sunny
Sunday Night
Low: 68 °F
Clear
Monday
High: 97 °F
Sunny
Monday Night
Low: 67 °F
Clear
Tuesday
High: 97 °F
Sunny
Tuesday Night
Low: 67 °F
Clear
Wednesday
High: 95 °F
Sunny
Detailed Forecast
Overnight
Mostly clear, with a low around 68. Calm wind.
Sunday
Sunny, with a high near 99. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Sunday Night
Clear, with a low around 68. West wind 5 to 10 mph becoming light and variable after midnight.
Monday
Sunny, with a high near 97. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Monday Night
Clear, with a low around 67. West wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 97.
Tuesday Night
Clear, with a low around 67.
Wednesday
Sunny, with a high near 95.
Wednesday Night
Clear, with a low around 66.
Thursday
Sunny, with a high near 96.
Thursday Night
Mostly clear, with a low around 68.
Friday
Sunny, with a high near 95.
Friday Night
Mostly clear, with a low around 68.
Saturday
Sunny, with a high near 95.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
5 Miles S Fontana CA
34.03°N 117.47°W (Elev. 1624 ft)
34.03°N 117.47°W (Elev. 1624 ft)
12:51 am PDT Aug 2, 2026
2am PDT Aug 2, 2026-6pm PDT Aug 8, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
