Hazardous Weather Conditions
Current conditions at
Fontana-Arrow Highway (CQ057)
Lat: 34.10056°NLon: 117.49222°WElev: 1191.0ft.NA
96°F
36°C
| Humidity | 21% |
| Wind Speed | WSW 6 MPH |
| Barometer | NA |
| Dewpoint | 51°F (11°C) |
| Visibility | NA |
| Heat Index | 93°F (34°C) |
| Last update | 20 Aug 06:00 PM PDT |
Extended Forecast for
3 Miles S Rialto CA
Heat Advisory August 20, 07:12pm until August 23, 08:00pm
NOW until 8:00pm Sat
Heat Advisory
Tonight
Low: 72 °F
Mostly Clear
Thursday
High: 104 °F
Sunny
Thursday Night
Low: 74 °F
Mostly Clear
Friday
High: 103 °F
Slight Chance
T-stormsFriday Night
Low: 75 °F
Slight Chance
T-stormsSaturday
High: 100 °F
Slight Chance
T-stormsSaturday Night
Low: 74 °F
Slight Chance
T-storms then
Mostly ClearSunday
High: 100 °F
Slight Chance
T-storms
Detailed Forecast
Tonight
Mostly clear, with a low around 72. West wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 104. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 74. Southwest wind around 5 mph becoming calm in the evening.
Friday
A slight chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 103. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Chance of precipitation is 20%.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 75. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Saturday
A slight chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 100. Chance of precipitation is 20%.
Saturday Night
A slight chance of showers and thunderstorms before 11pm. Mostly clear, with a low around 74. Chance of precipitation is 20%.
Sunday
A slight chance of showers and thunderstorms after 11am. Sunny, with a high near 100.
Sunday Night
A slight chance of showers and thunderstorms before 11pm. Mostly clear, with a low around 72.
Monday
A slight chance of showers and thunderstorms after 11am. Sunny, with a high near 96.
Monday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 69.
Tuesday
Sunny, with a high near 93.
Tuesday Night
Mostly clear, with a low around 66.
Wednesday
Sunny, with a high near 91.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles S Rialto CA
34.08°N 117.4°W (Elev. 1125 ft)
34.08°N 117.4°W (Elev. 1125 ft)
1:07 pm PDT Aug 20, 2025
7pm PDT Aug 20, 2025-6pm PDT Aug 27, 2025
Additional Resources
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