Sunday
Mostly sunny
High:
89°F
Mostly sunny, with a high near 89. Light and variable wind becoming west 5 to 10 mph 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:
91°F
Sunny, with a high near 91.
Monday Night
Clear
Overnight low:
63°F
Clear, with a low around 63.
Tuesday
Sunny
High:
94°F
Tuesday Night
Clear
Overnight low:
64°F
Wednesday
Sunny
High:
94°F
Wednesday Night
Clear
Overnight low:
62°F
Thursday
Sunny
High:
92°F