Wednesday
Mostly sunny
High:
73°F
Mostly sunny, with a high near 73. Calm wind becoming southeast around 5 mph.
Rancho Cucamonga, CA Weather - Extended Forecast
Wednesday Night
Mostly cloudy
Overnight low:
58°F
Mostly cloudy, with a low around 58.
Thursday
Partly sunny
High:
72°F
Partly sunny, with a high near 72.
Thursday Night
Mostly cloudy
Overnight low:
58°F
Mostly cloudy, with a low around 58.
Friday
Partly sunny
High:
67°F
Friday Night
Chance of showers and thunderstorms
Overnight low:
57°F
Saturday
Chance of showers
High:
65°F
Saturday Night
Showers likely
Overnight low:
56°F
Sunday
Showers likely
High:
64°F