Sunday
Showers
High:
82°F
Showers and possibly a thunderstorm. High near 82. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Rancho Cucamonga, CA Weather - Tomorrow’s Forecast
Sunday Night
Chance of showers and thunderstorms
Overnight low:
68°F
A slight chance of showers before 11pm. Partly cloudy, with a low around 68. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 10%.