Sunday
Becoming sunny
High:
81°F
Partly sunny, then gradually becoming sunny, with a high near 81. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Rancho Cucamonga, CA Weather - Extended Forecast
Sunday Night
Mostly clear
Overnight low:
57°F
Mostly clear, with a low around 57.
Monday
Sunny
High:
83°F
Sunny, with a high near 83.
Monday Night
Mostly clear
Overnight low:
57°F
Mostly clear, with a low around 57.
Tuesday
Sunny
High:
82°F
Tuesday Night
Mostly clear
Overnight low:
58°F
Wednesday
Sunny
High:
84°F
Wednesday Night
Clear
Overnight low:
59°F
Thursday
Sunny
High:
85°F