Rancho Cucamonga, CA Weather - Extended Forecast

Thursday

Mostly sunny

High:
66°F

Mostly sunny, with a high near 66. Calm wind becoming west around 5 mph in the afternoon.

Thursday Night

Mostly cloudy

Overnight low:
47°F

Mostly cloudy, with a low around 47. West wind 5 to 10 mph becoming light and variable in the evening.

Friday

Mostly sunny

High:
68°F

Mostly sunny, with a high near 68.

Friday Night

Mostly clear

Overnight low:
46°F

Mostly clear, with a low around 46.

Saturday

Sunny

High:
70°F

Saturday Night

Mostly clear

Overnight low:
47°F

Sunday

Mostly sunny

High:
65°F

Sunday Night

Partly cloudy

Overnight low:
43°F

Monday

Mostly sunny

High:
64°F

Monday Night

Mostly clear

Overnight low:
44°F

Tuesday

Sunny

High:
66°F