StadiumForecast.com - Your Weather Expert for Sports
   Football
   Baseball
Golf
  Soccer
Racing
 

Auto Club Speedway Weather



Weather Forecast for Fontana

Now
Current Weather Conditions
64° F

Wind: 1.01 mph
Humidity: 61%
Clouds: 0%
Pressure: 1014 hPa
Sunrise: 10:52 AM ET
Sunset: 8:44 PM ET
Tomorrow
Tomorrow's Weather Conditions
Chance
Showers and
Patchy Fog

Heavy Rain

Thu
Thu's Weather Conditions
Heavy Rain


Heavy Rain



Extended Forecast
 
National Weather Service Forecast for: Fontana CA
Issued by: National Weather Service San Diego, CA
Updated: 12:35 pm PST Dec 22, 2025
 
Tonight

Tonight: Patchy fog after 4am.  Otherwise, mostly cloudy, with a low around 52. West wind around 5 mph becoming calm.
Low: 52 °F
Tuesday

Tuesday: A chance of showers, mainly after 4pm.  Patchy fog before 10am.  Otherwise, mostly cloudy, with a high near 66. Southeast wind around 5 mph.  Chance of precipitation is 30%.
High: 66 °F
Tuesday
Night
Tuesday Night: Showers, mainly after 10pm. The rain could be heavy at times.  Low around 55. Light southeast wind increasing to 10 to 15 mph after midnight. Winds could gust as high as 25 mph.  Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.
Low: 55 °F
Wednesday

Wednesday: Showers, with thunderstorms also possible after 10am. Some of the storms could produce heavy rainfall.  High near 62. South wind 5 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 100%. New rainfall amounts between 2 and 3 inches possible.
High: 62 °F
Wednesday
Night
Wednesday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall.  Low around 53. Southwest wind 5 to 10 mph becoming light and variable. Winds could gust as high as 20 mph.  Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Low: 53 °F
Christmas
Day
Christmas Day: Showers.  High near 62. Chance of precipitation is 80%.
High: 62 °F
Thursday
Night
Thursday Night: Showers.  Low around 51. Chance of precipitation is 90%.
Low: 51 °F
Friday

Friday: Showers.  Mostly cloudy, with a high near 60.
High: 60 °F
Friday
Night
Friday Night: Showers likely, mainly before 10pm.  Mostly cloudy, with a low around 45.
Low: 45 °F
Mostly Cloudy
then Patchy
Fog
Chance
Showers and
Patchy Fog
Heavy Rain

Heavy Rain

Heavy Rain

Showers

Showers

Showers

Showers
Likely

Flood Watch
Wind Advisory


Tonight
 
Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 52. West wind around 5 mph becoming calm.
Tuesday
 
A chance of showers, mainly after 4pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 66. Southeast wind around 5 mph. Chance of precipitation is 30%.
Tuesday Night
 
Showers, mainly after 10pm. The rain could be heavy at times. Low around 55. Light southeast wind increasing to 10 to 15 mph after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.
Wednesday
 
Showers, with thunderstorms also possible after 10am. Some of the storms could produce heavy rainfall. High near 62. South wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between 2 and 3 inches possible.
Wednesday Night
 
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 53. Southwest wind 5 to 10 mph becoming light and variable. Winds could gust as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Christmas Day
 
Showers. High near 62. Chance of precipitation is 80%.
Thursday Night
 
Showers. Low around 51. Chance of precipitation is 90%.
Friday
 
Showers. Mostly cloudy, with a high near 60.
Friday Night
 
Showers likely, mainly before 10pm. Mostly cloudy, with a low around 45.
Saturday
 
A slight chance of showers. Partly sunny, with a high near 60.
Saturday Night
 
A slight chance of showers. Partly cloudy, with a low around 44.
Sunday
 
Sunny, with a high near 62.
Sunday Night
 
Partly cloudy, with a low around 45.
Monday
 
A slight chance of showers. Mostly sunny, with a high near 65.

Forecast from NOAA-NWS for Fontana.



 


Football  |  Baseball  |  Golf  |  Soccer  |  Racing  |  Radar  |  Stadiums

Copyright © 2009-, StadiumForecast.com a Division of FFWV