Sunday
Sunny
High:
90°F
Sunny, with a high near 90. Southwest wind around 5 mph becoming north in the afternoon.
Rancho Cucamonga, CA Weather - Extended Forecast
Sunday Night
Mostly clear
Overnight low:
63°F
Mostly clear, with a low around 63.
Monday
Sunny
High:
93°F
Sunny, with a high near 93.
Monday Night
Mostly clear
Overnight low:
67°F
Mostly clear, with a low around 67.
Tuesday
Sunny
High:
97°F
Tuesday Night
Clear
Overnight low:
68°F
Wednesday
Sunny
High:
98°F
Wednesday Night
Clear
Overnight low:
68°F
Thursday
Sunny
High:
99°F