10-Day Weather Forecast - Rancho Cucamonga, CA

Mostly sunny. Highs 79 to 83. Areas of winds north 10 to 15 mph with gusts to 30 mph.

Clear. Lows 47 to 51 in wind sheltered areas to 52 to 56 in warmer locations. Areas of winds east 10 to 15 mph with gusts to 30 mph.

Mostly sunny. Highs 78 to 83. Areas of winds east 10 to 15 mph with gusts to 30 mph.

Mostly clear. Lows around 50 in wind sheltered areas to 51 to 54 in warmer locations. Areas of winds east 10 to 15 mph. Gusts to 25 mph in the evening.

Mostly sunny. Highs 77 to 82.

Clear. Lows 48 to 53.

Mostly sunny. Highs 77 to 82.

Mostly clear in the evening. . . Becoming partly cloudy. Lows 48 to 53.

Partly cloudy in the morning. . . Becoming mostly sunny. Highs 76 to 81.

Mostly clear. Lows 49 to 53.

Mostly sunny. Highs 75 to 79.

Mostly clear in the evening. . . Becoming partly cloudy. Lows 46 to 52.

Partly cloudy. Highs 71 to 76.

Partly cloudy. Low temperature around 55F. Dew point will be around 42F with an average humidity of 52%. Winds will be 3 mph from the SW.

Mostly sunny. High temperature around 63F. Dew point will be around 44F with an average humidity of 53%. Winds will be 6 mph from the S.

Cloudy. Low temperature around 53F. Dew point will be around 49F with an average humidity of 76%. Winds will be 6 mph from the SW.

Cloudy. High temperature around 58F. Dew point will be around 47F with an average humidity of 68%. Winds will be 6 mph from the S.

Mostly cloudy. Low temperature around 50F. Dew point will be around 46F with an average humidity of 77%. Winds will be 5 mph from the SW.