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

70°F

21°C

Humidity 27%
Wind Speed NNE 1 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Last update 20 Jan 06:00 PM PST
Extended Forecast for

4 Miles WSW Colton CA

  • Tonight

    Tonight: Partly cloudy, with a low around 49. West wind around 5 mph becoming calm in the evening.

    Low: 49 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 73. Calm wind becoming west around 5 mph in the afternoon.

    High: 73 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 50. Calm wind.

    Low: 50 °F

    Mostly Cloudy

  • Thursday

    Thursday: A slight chance of showers after 10am. Partly sunny, with a high near 67. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 67 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: A slight chance of showers. Mostly cloudy, with a low around 50. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 50 °F

    Slight Chance
    Showers

  • Friday

    Friday: A slight chance of showers. Cloudy, then gradually becoming mostly sunny, with a high near 65. Chance of precipitation is 20%.

    High: 65 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 49. West wind around 5 mph becoming calm in the evening.
Wednesday
Partly sunny, with a high near 73. Calm wind becoming west around 5 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 50. Calm wind.
Thursday
A slight chance of showers after 10am. Partly sunny, with a high near 67. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 20%.
Thursday Night
A slight chance of showers. Mostly cloudy, with a low around 50. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Friday
A slight chance of showers. Cloudy, then gradually becoming mostly sunny, with a high near 65. Chance of precipitation is 20%.
Friday Night
Mostly cloudy, with a low around 48.
Saturday
Mostly sunny, with a high near 66.
Saturday Night
Mostly clear, with a low around 43.
Sunday
Sunny, with a high near 68.
Sunday Night
Mostly clear, with a low around 43.
Monday
Mostly sunny, with a high near 70.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
Sunny, with a high near 73.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Colton CA
 34.04°N 117.39°W (Elev. 951 ft)
Last Update:
12:16 pm PST Jan 20, 2026
Forecast Valid:
7pm PST Jan 20, 2026-6pm PST Jan 27, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation