10-Day Weather Forecast - Rancho Cucamonga, CA

Partly cloudy with patchy fog in the morning. . . Becoming sunny. Highs 78 to 85. Areas of winds west to 10 mph. . . Becoming 10 to 15 mph with gusts to 25 mph in the afternoon.

Mostly clear. Lows 50 to 56. Areas of winds west 10 to 15 mph with gusts to 25 mph in the evening becoming light.

Partly cloudy in the morning. . . Becoming sunny. Highs 79 to 87. Areas of winds southwest to 10 mph becoming west with gusts to 30 mph in the afternoon.

Mostly clear. Lows 52 to 57. Areas of winds west to 10 mph in the evening becoming light.

Mostly sunny. Highs 84 to 93.

Clear. Lows 55 to 60.

Mostly sunny. Warmer. Highs 91 to 99.

Mostly clear. Lows 59 to 64.

Mostly sunny. Highs 93 to 101.

Mostly clear. Lows 60 to 64.

Mostly sunny. Highs 93 to 101.

Clear. Lows 59 to 63.

Mostly sunny. Highs 88 to 95.

Clear. Low temperature around 63F. Dew point will be around 53F with an average humidity of 57%. Winds will be 6 mph from the SW.

Sunny. High temperature around 85F. Dew point will be around 53F with an average humidity of 43%. Winds will be 8 mph from the SW.

Clear. Low temperature around 63F. Dew point will be around 56F with an average humidity of 63%. Winds will be 6 mph from the SW.

Sunny. High temperature around 83F. Dew point will be around 56F with an average humidity of 50%. Winds will be 9 mph from the SW.

Clear. Low temperature around 62F. Dew point will be around 58F with an average humidity of 70%. Winds will be 6 mph from the SW.