Hazardous Weather Conditions
Current conditions at
Fontana-Arrow Highway (CQ057)
Lat: 34.10056°NLon: 117.49222°WElev: 1191.0ft.NA
80°F
27°C
| Humidity | 34% |
| Wind Speed | NNE 3 MPH |
| Barometer | NA |
| Dewpoint | 50°F (10°C) |
| Visibility | NA |
| Heat Index | 79°F (26°C) |
| Last update | 04 Oct 12:00 AM PDT |
Extended Forecast for
3 Miles S Rialto CA
Extreme Heat Warning October 4, 01:21am until October 8, 08:00pm
NOW until 8:00pm Thu
Extreme Heat Warning
Overnight
Low: 74 °F
Clear
Sunday
High: 101 °F
Sunny
Sunday Night
Low: 73 °F
Clear
Monday
High: 102 °F
Sunny
Monday Night
Low: 72 °F
Mostly Clear
Tuesday
High: 101 °F
Sunny
Tuesday Night
Low: 71 °F
Clear
Wednesday
High: 101 °F
Sunny
Detailed Forecast
Overnight
Clear, with a low around 74. Calm wind.
Sunday
Sunny, with a high near 101. Light and variable wind becoming southeast 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Clear, with a low around 73. Southwest wind around 5 mph becoming calm after midnight.
Monday
Sunny, with a high near 102. North wind around 5 mph becoming calm in the morning.
Monday Night
Mostly clear, with a low around 72. South wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 101.
Tuesday Night
Clear, with a low around 71.
Wednesday
Sunny, with a high near 101.
Wednesday Night
Clear, with a low around 72.
Thursday
Sunny, with a high near 101.
Thursday Night
Clear, with a low around 72.
Friday
Sunny, with a high near 98.
Friday Night
Mostly clear, with a low around 68.
Saturday
Mostly sunny, with a high near 87.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles S Rialto CA
34.06°N 117.39°W (Elev. 1056 ft)
34.06°N 117.39°W (Elev. 1056 ft)
12:28 am PDT Oct 4, 2026
1am PDT Oct 4, 2026-6pm PDT Oct 10, 2026
Additional Resources
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