Monday
Mostly sunny
High:
75°F
Mostly sunny, with a high near 75. Calm wind becoming southwest around 5 mph in the afternoon.
Rancho Cucamonga, CA Weather - Extended Forecast
Monday Night
Mostly cloudy
Overnight low:
54°F
Mostly cloudy, with a low around 54.
Tuesday
Chance of showers and thunderstorms
High:
68°F
Showers likely, mainly after 4pm. Mostly cloudy, with a high near 68. Chance of precipitation is 60%.
Tuesday Night
Heavy rain
Overnight low:
55°F
Showers. The rain could be heavy at times. Cloudy, with a low around 55.
Wednesday
Heavy rain
High:
62°F
Wednesday Night
Heavy rain
Overnight low:
54°F
Christmas Day
Heavy rain
High:
63°F
Thursday Night
Showers
Overnight low:
52°F
Friday
Showers likely
High:
62°F