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

55°F

13°C

Humidity 100%
Wind Speed NE 3 MPH
Barometer NA
Dewpoint 55°F (13°C)
Visibility NA
Last update 01 Jan 03:00 AM PST
Extended Forecast for

4 Miles SSW Fontana CA

Flood Watch until January 1, 10:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch until January 1, 10:00pm

    NOW until 10:00pm Thu

    Flood Watch

  • Overnight

    Low: 53 °F

    Showers

  • New Year's Day

    New Year's Day: Showers and possibly a thunderstorm. High near 63. Southeast wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 63 °F

    Showers

  • Thursday Night

    Thursday Night: A slight chance of showers before 10pm. Mostly cloudy, with a low around 50. Calm wind. Chance of precipitation is 20%.

    Low: 50 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 66. Calm wind.

    High: 66 °F

    Partly Sunny

  • Friday Night

    Friday Night: A slight chance of showers after 10pm. Mostly cloudy, with a low around 52. Calm wind becoming east around 5 mph. Chance of precipitation is 20%.

    Low: 52 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: A chance of showers, mainly after 10am. Cloudy, with a high near 65. Chance of precipitation is 40%.

    High: 65 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely, mainly before 4am. Mostly cloudy, with a low around 52. Chance of precipitation is 70%.

    Low: 52 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers, then showers likely and possibly a thunderstorm after 10am. Mostly cloudy, with a high near 63.

    High: 63 °F

    Showers
    Likely

Detailed Forecast

Overnight
Showers. Low around 53. East wind around 5 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
New Year's Day
Showers and possibly a thunderstorm. High near 63. Southeast wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday Night
A slight chance of showers before 10pm. Mostly cloudy, with a low around 50. Calm wind. Chance of precipitation is 20%.
Friday
Partly sunny, with a high near 66. Calm wind.
Friday Night
A slight chance of showers after 10pm. Mostly cloudy, with a low around 52. Calm wind becoming east around 5 mph. Chance of precipitation is 20%.
Saturday
A chance of showers, mainly after 10am. Cloudy, with a high near 65. Chance of precipitation is 40%.
Saturday Night
Showers likely, mainly before 4am. Mostly cloudy, with a low around 52. Chance of precipitation is 70%.
Sunday
A chance of showers, then showers likely and possibly a thunderstorm after 10am. Mostly cloudy, with a high near 63.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 51.
Monday
A chance of showers. Mostly cloudy, with a high near 63.
Monday Night
A chance of showers. Mostly cloudy, with a low around 49.
Tuesday
A chance of showers. Mostly cloudy, with a high near 63.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 46.
Wednesday
A chance of showers. Partly sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Fontana CA
 34.05°N 117.47°W (Elev. 951 ft)
Last Update:
12:36 am PST Jan 1, 2026
Forecast Valid:
4am PST Jan 1, 2026-6pm PST Jan 7, 2026
 
Forecast Discussion
 
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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