Sunday
Sunny
High:
70°F
Sunny, with a high near 70. Calm wind becoming southwest around 5 mph in the afternoon.
Rancho Cucamonga, CA Weather - Extended Forecast
Sunday Night
Mostly cloudy
Overnight low:
54°F
Mostly cloudy, with a low around 54.
Monday
Chance of showers and thunderstorms
High:
68°F
Showers likely and possibly a thunderstorm, mainly after 4pm. Partly sunny, with a high near 68. Chance of precipitation is 60%.
Monday Night
Showers
Overnight low:
51°F
Showers likely and possibly a thunderstorm, then showers after 10pm. Mostly cloudy, with a low around 51.
Tuesday
Chance of showers
High:
63°F
Tuesday Night
Mostly clear
Overnight low:
45°F
Wednesday
Sunny
High:
64°F
Wednesday Night
Chance of showers
Overnight low:
49°F
Thursday
Chance of showers
High:
63°F
Thursday Night
Chance of showers
Overnight low:
46°F