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

Fontana-Arrow Highway (CQ057)

Lat: 34.10056°NLon: 117.49222°WElev: 1191.0ft.

NA

59°F

15°C

Humidity 80%
Wind Speed WSW 3 MPH
Barometer NA
Dewpoint 53°F (12°C)
Visibility NA
Last update 25 May 01:00 AM PDT
Extended Forecast for

4 Miles WSW Colton CA

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly cloudy, with a low around 55. West wind around 5 mph.

    Low: 55 °F

    Patchy Fog

  • Memorial Day

    Memorial Day: Patchy fog before 11am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 78. Southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 78 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 55. West wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 55 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Cloudy, then gradually becoming mostly sunny, with a high near 73. Light southwest wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 73 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 54. West wind 10 to 15 mph becoming west 5 to 10 mph after midnight. Winds could gust as high as 30 mph.

    Low: 54 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: A slight chance of rain before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 71. Chance of precipitation is 20%.

    High: 71 °F

    Slight Chance
    Rain then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain after 11pm. Increasing clouds, with a low around 53. Chance of precipitation is 20%.

    Low: 53 °F

    Slight Chance
    Rain

  • Thursday

    Thursday: A slight chance of rain before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 72.

    High: 72 °F

    Slight Chance
    Rain then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 55. West wind around 5 mph.
Memorial Day
Patchy fog before 11am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 78. Southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Monday Night
Increasing clouds, with a low around 55. West wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday
Cloudy, then gradually becoming mostly sunny, with a high near 73. Light southwest wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Tuesday Night
Increasing clouds, with a low around 54. West wind 10 to 15 mph becoming west 5 to 10 mph after midnight. Winds could gust as high as 30 mph.
Wednesday
A slight chance of rain before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 71. Chance of precipitation is 20%.
Wednesday Night
A slight chance of rain after 11pm. Increasing clouds, with a low around 53. Chance of precipitation is 20%.
Thursday
A slight chance of rain before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 72.
Thursday Night
Mostly clear, with a low around 53.
Friday
Sunny, with a high near 76.
Friday Night
Clear, with a low around 55.
Saturday
Sunny, with a high near 82.
Saturday Night
Clear, with a low around 57.
Sunday
Sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Colton CA
 34.04°N 117.39°W (Elev. 951 ft)
Last Update:
12:37 am PDT May 25, 2026
Forecast Valid:
2am PDT May 25, 2026-6pm PDT May 31, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation