Sunday
Sunny
High:
100°F
Sunny, with a high near 100. Northeast wind 5 to 10 mph becoming southwest in the afternoon.
Rancho Cucamonga, CA Weather - Extended Forecast
Sunday Night
Clear
Overnight low:
73°F
Clear, with a low around 73.
Monday
Sunny
High:
99°F
Sunny, with a high near 99.
Monday Night
Clear
Overnight low:
74°F
Clear, with a low around 74.
Tuesday
Sunny
High:
99°F
Tuesday Night
Clear
Overnight low:
73°F
Wednesday
Sunny
High:
100°F
Wednesday Night
Clear
Overnight low:
73°F
Thursday
Sunny
High:
100°F