Thursday
Sunny
High:
89°F
Sunny, with a high near 89. Light southwest wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Rancho Cucamonga, CA Weather - Extended Forecast
Thursday Night
Mostly clear
Overnight low:
61°F
Mostly clear, with a low around 61.
Friday
Sunny
High:
86°F
Sunny, with a high near 86.
Friday Night
Mostly clear
Overnight low:
59°F
Mostly clear, with a low around 59.
Saturday
Mostly sunny
High:
81°F
Saturday Night
Partly cloudy
Overnight low:
58°F
Sunday
Mostly sunny
High:
80°F
Sunday Night
Mostly clear
Overnight low:
57°F
Monday
Sunny
High:
82°F