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

57°F

14°C

Humidity 91%
Wind Speed SSW 4 MPH
Barometer NA
Dewpoint 55°F (13°C)
Visibility NA
Last update 11 Apr 06:00 AM PDT
Extended Forecast for

3 Miles ESE Rancho Cucamonga CA

  • Today

    Today: A slight chance of showers before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 69. Southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 69 °F

    Slight Chance
    Showers then
    Sunny

  • Tonight

    Tonight: A slight chance of showers after 11pm. Increasing clouds, with a low around 52. Southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 52 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Showers, with thunderstorms also possible after 11am. High near 62. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 62 °F

    Showers

  • Sunday Night

    Sunday Night: A slight chance of showers before 11pm. Partly cloudy, with a low around 48. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 48 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 65. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 65 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 50.

    Low: 50 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

Detailed Forecast

Today
A slight chance of showers before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 69. Southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Tonight
A slight chance of showers after 11pm. Increasing clouds, with a low around 52. Southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Sunday
Showers, with thunderstorms also possible after 11am. High near 62. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
A slight chance of showers before 11pm. Partly cloudy, with a low around 48. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 65. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 48.
Tuesday
Sunny, with a high near 73.
Tuesday Night
Clear, with a low around 50.
Wednesday
Sunny, with a high near 76.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
Mostly sunny, with a high near 75.
Thursday Night
Partly cloudy, with a low around 52.
Friday
Sunny, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Rancho Cucamonga CA
 34.11°N 117.54°W (Elev. 1161 ft)
Last Update:
12:31 am PDT Apr 11, 2026
Forecast Valid:
7am PDT Apr 11, 2026-6pm PDT Apr 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation