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

56°F

13°C

Humidity 77%
Wind Speed SSW 3 MPH
Barometer NA
Dewpoint 50°F (10°C)
Visibility NA
Last update 12 Apr 07:00 AM PDT
Extended Forecast for

3 Miles ESE Rancho Cucamonga CA

  • Today

    Today: Showers likely, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 62. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 62 °F

    Showers
    Likely

  • Tonight

    Tonight: Partly cloudy, with a low around 47. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 47 °F

    Partly Cloudy

  • Monday

    Monday: A slight chance of showers. Mostly sunny, with a high near 64. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 64 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 48. West wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.

    Low: 48 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 72. Light and variable wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 72 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 49.

    Low: 49 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

Detailed Forecast

Today
Showers likely, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 62. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Partly cloudy, with a low around 47. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Monday
A slight chance of showers. Mostly sunny, with a high near 64. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 48. West wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Tuesday
Sunny, with a high near 72. Light and variable wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Clear, with a low around 49.
Wednesday
Sunny, with a high near 74.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
Mostly sunny, with a high near 72.
Thursday Night
Mostly clear, with a low around 51.
Friday
Sunny, with a high near 76.
Friday Night
Clear, with a low around 52.
Saturday
Sunny, with a high near 81.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Rancho Cucamonga CA
 34.11°N 117.54°W (Elev. 1161 ft)
Last Update:
12:04 am PDT Apr 12, 2026
Forecast Valid:
9am PDT Apr 12, 2026-6pm PDT Apr 18, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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