10-Day Weather Forecast - Rancho Cucamonga, CA

Mostly sunny in the morning. . . Becoming partly cloudy. Highs 71 to 76. Areas of winds southwest to 10 mph. . . Becoming 10 to 20 mph with gusts to 30 mph in the afternoon.

Partly cloudy. A slight chance of showers in the evening. Lows 44 to 50. Areas of winds west 10 to 20 mph. Gusts to 30 mph in the evening. Chance of measurable precipitation 20 percent.

Partly cloudy. Highs 67 to 73. Areas of winds west 10 to 15 mph. Gusts to 25 mph in the afternoon.

Partly cloudy in the evening. . . Becoming mostly clear. Lows 43 to 49.

Mostly sunny. Highs 72 to 78.

Partly cloudy. Lows 46 to 53.

Partly cloudy. Highs 71 to 77.

Partly cloudy. Lows 46 to 52.

Partly cloudy. Highs 67 to 73.

Partly cloudy. Lows 45 to 51.

Partly cloudy. Highs 65 to 71.

Mostly cloudy. Low temperature around 53F. Dew point will be around 48F with an average humidity of 81%. Winds will be 6 mph from the SW.

Mostly cloudy. High temperature around 68F. Dew point will be around 50F with an average humidity of 65%. Winds will be 5 mph from the SW.

Mostly clear. Low temperature around 53F. Dew point will be around 49F with an average humidity of 75%. Winds will be 3 mph from the SW.

Mostly cloudy. High temperature around 70F. Dew point will be around 50F with an average humidity of 61%. Winds will be 6 mph from the SW.

Mostly clear. Low temperature around 53F. Dew point will be around 49F with an average humidity of 72%. Winds will be 4 mph from the SW.

Partly cloudy. High temperature around 71F. Dew point will be around 49F with an average humidity of 56%. Winds will be 6 mph from the SW.

Clear. Low temperature around 54F. Dew point will be around 49F with an average humidity of 70%. Winds will be 4 mph from the SW.