Thursday
Sunny
High:
99°F
Sunny, with a high near 99. Light south wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Rancho Cucamonga, CA Weather - Extended Forecast
Thursday Night
Mostly clear
Overnight low:
69°F
Mostly clear, with a low around 69. Southwest wind 5 to 10 mph becoming light west after midnight.
Friday
Sunny
High:
100°F
Sunny, with a high near 100.
Friday Night
Mostly clear
Overnight low:
69°F
Mostly clear, with a low around 69.
Saturday
Sunny
High:
97°F
Saturday Night
Mostly clear
Overnight low:
69°F
Sunday
Sunny
High:
98°F
Sunday Night
Partly cloudy
Overnight low:
69°F
Monday
Sunny
High:
95°F
Monday Night
Mostly clear
Overnight low:
67°F
Tuesday
Sunny
High:
92°F