Saturday
Chance of showers and thunderstorms
High:
70°F
A slight chance of showers after 11am. Mostly cloudy, with a high near 70. Calm wind becoming east around 5 mph. Chance of precipitation is 20%.
Rancho Cucamonga, CA Weather - Extended Forecast
Saturday Night
Showers
Overnight low:
57°F
Showers. Low around 57. Calm wind becoming southwest around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Showers likely
High:
67°F
Showers likely, mainly before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 67. Chance of precipitation is 70%.
Sunday Night
Chance of showers and thunderstorms
Overnight low:
53°F
A slight chance of showers before 11pm. Partly cloudy, with a low around 53. Chance of precipitation is 20%.
Monday
Sunny
High:
72°F
Monday Night
Mostly clear
Overnight low:
55°F
Tuesday
Sunny
High:
75°F
Tuesday Night
Mostly clear
Overnight low:
55°F
Wednesday
Mostly sunny
High:
74°F
Wednesday Night
Mostly clear
Overnight low:
55°F
Thursday
Mostly sunny
High:
71°F