Hazardous Weather Conditions
Current conditions at
Fontana-Arrow Highway (CQ057)
Lat: 34.10056°NLon: 117.49222°WElev: 1191.0ft.NA
83°F
28°C
| Humidity | 60% |
| Wind Speed | SW 1 MPH |
| Barometer | NA |
| Dewpoint | 68°F (20°C) |
| Visibility | NA |
| Heat Index | 86°F (30°C) |
| Last update | 28 Aug 01:00 AM PDT |
Extended Forecast for
2 Miles ESE Fontana CA
Extreme Heat Warning August 28, 02:36am until August 28, 08:00pm
NOW until 8:00pm Fri

Extreme Heat Warning
Overnight

Low: 76 °F
Mostly Cloudy
Friday

High: 104 °F
Mostly Sunny
Friday Night

Low: 73 °F
Mostly Clear
Saturday

High: 100 °F
Sunny
Saturday Night

Low: 70 °F
Mostly Clear
Sunday

High: 96 °F
Sunny
Sunday Night

Low: 67 °F
Clear
Monday

High: 92 °F
Sunny
Detailed Forecast
Overnight
Mostly cloudy, with a low around 76. Calm wind.
Friday
Mostly sunny, with a high near 104. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly clear, with a low around 73. Southwest wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.
Saturday
Sunny, with a high near 100. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Mostly clear, with a low around 70. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 96.
Sunday Night
Clear, with a low around 67.
Monday
Sunny, with a high near 92.
Monday Night
Mostly clear, with a low around 64.
Tuesday
Sunny, with a high near 87.
Tuesday Night
A slight chance of showers. Mostly cloudy, with a low around 66.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 89.
Wednesday Night
Partly cloudy, with a low around 68.
Thursday
A slight chance of showers. Mostly sunny, with a high near 92.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
2 Miles ESE Fontana CA
34.1°N 117.43°W (Elev. 1296 ft)
34.1°N 117.43°W (Elev. 1296 ft)
1:07 am PDT Aug 28, 2026
2am PDT Aug 28, 2026-6pm PDT Sep 3, 2026



