Hazardous Weather Conditions
Current conditions at
Fontana-Arrow Highway (CQ057)
Lat: 34.10056°NLon: 117.49222°WElev: 1191.0ft.NA
79°F
26°C
| Humidity | 46% |
| Wind Speed | WSW 2 MPH |
| Barometer | NA |
| Dewpoint | 57°F (14°C) |
| Visibility | NA |
| Heat Index | 80°F (27°C) |
| Last update | 20 Aug 12:00 AM PDT |
Extended Forecast for
3 Miles NNE Fontana CA
Heat Advisory August 20, 01:36am until August 20, 08:00pm
NOW until 8:00pm Thu

Heat Advisory
Overnight

Low: 72 °F
Clear
Thursday

High: 101 °F
Mostly Sunny
Thursday Night

Low: 71 °F
Mostly Clear
Friday

High: 100 °F
Sunny
Friday Night

Low: 70 °F
Mostly Clear
Saturday

High: 99 °F
Sunny
Saturday Night

Low: 70 °F
Mostly Clear
Sunday

High: 98 °F
Sunny
Detailed Forecast
Overnight
Clear, with a low around 72. Calm wind.
Thursday
Mostly sunny, with a high near 101. Light and variable wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Mostly clear, with a low around 71. Southwest wind 5 to 10 mph becoming light and variable in the evening.
Friday
Sunny, with a high near 100. Light and variable wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly clear, with a low around 70. Southwest wind 5 to 10 mph becoming light and variable in the evening.
Saturday
Sunny, with a high near 99.
Saturday Night
Mostly clear, with a low around 70.
Sunday
Sunny, with a high near 98.
Sunday Night
Mostly clear, with a low around 70.
Monday
Sunny, with a high near 98.
Monday Night
Mostly clear, with a low around 70.
Tuesday
Sunny, with a high near 99.
Tuesday Night
Mostly clear, with a low around 71.
Wednesday
Sunny, with a high near 98.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles NNE Fontana CA
34.14°N 117.44°W (Elev. 1614 ft)
34.14°N 117.44°W (Elev. 1614 ft)
12:34 am PDT Aug 20, 2026
1am PDT Aug 20, 2026-6pm PDT Aug 26, 2026



