Thursday
Mostly sunny
High:
66°F
Mostly sunny, with a high near 66. Calm wind becoming west around 5 mph in the afternoon.
Rancho Cucamonga, CA Weather - Extended Forecast
Thursday Night
Mostly cloudy
Overnight low:
47°F
Mostly cloudy, with a low around 47. West wind 5 to 10 mph becoming light and variable in the evening.
Friday
Mostly sunny
High:
68°F
Mostly sunny, with a high near 68.
Friday Night
Mostly clear
Overnight low:
46°F
Mostly clear, with a low around 46.
Saturday
Sunny
High:
70°F
Saturday Night
Mostly clear
Overnight low:
47°F
Sunday
Mostly sunny
High:
65°F
Sunday Night
Partly cloudy
Overnight low:
43°F
Monday
Mostly sunny
High:
64°F
Monday Night
Mostly clear
Overnight low:
44°F
Tuesday
Sunny
High:
66°F