National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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 23%
Wind Speed WSW 6 MPH
Barometer NA
Dewpoint 52°F (11°C)
Visibility NA
Heat Index93°F (34°C)
Last update 18 Jun 03:00 PM PDT
Extended Forecast for

3 Miles SW Fontana CA

Heat Advisory June 18, 04:07pm until June 18, 08:00pm
Click here for hazard details and duration
...
  •  
    Heat Advisory June 18, 04:07pm until June 18, 08:00pm

    NOW until 8:00pm Wed

    Heat Advisory

  • Tonight

    Low: 63 °F

    Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 92. Southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 92 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 62. West wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph.

    Low: 62 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 86. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 86 °F

    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 59. Southwest wind 5 to 10 mph becoming light south after midnight. Winds could gust as high as 20 mph.

    Low: 59 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Patchy fog before 11am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 81.

    High: 81 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 56.

    Low: 56 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Patchy fog before 11am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 82.

    High: 82 °F

    Patchy Fog
    then Sunny

Detailed Forecast

Tonight
Clear, with a low around 63. West wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph.
Juneteenth
Sunny, with a high near 92. Southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Thursday Night
Clear, with a low around 62. West wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph.
Friday
Sunny, with a high near 86. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Friday Night
Increasing clouds, with a low around 59. Southwest wind 5 to 10 mph becoming light south after midnight. Winds could gust as high as 20 mph.
Saturday
Patchy fog before 11am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 81.
Saturday Night
Increasing clouds, with a low around 56.
Sunday
Patchy fog before 11am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 82.
Sunday Night
Mostly clear, with a low around 58.
Monday
Sunny, with a high near 84.
Monday Night
Mostly clear, with a low around 58.
Tuesday
Sunny, with a high near 84.
Tuesday Night
Mostly clear, with a low around 59.
Wednesday
Sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Fontana CA
 34.07°N 117.48°W (Elev. 1070 ft)
Last Update:
12:57 pm PDT Jun 18, 2025
Forecast Valid:
4pm PDT Jun 18, 2025-6pm PDT Jun 25, 2025
 
Forecast Discussion
 
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