10-Day Weather Forecast - Rancho Cucamonga, CA

Mostly sunny in the morning..becoming partly cloudy. Highs 103 to 109. Areas of winds west to 10 mph.. becoming 10 to 15 mph with gusts to 25 mph in the afternoon.

Partly cloudy. Lows 72 to 77. Areas of winds southwest 10 to 15 mph with gusts to 25 mph in the evening becoming light.

Mostly cloudy in the morning..becoming partly cloudy. Highs 104 to 109. Light winds becoming west 10 to 15 mph in the afternoon.

Partly cloudy. Lows 73 to 77. Areas of winds west to 10 mph in the evening becoming light.

Partly cloudy. Highs 103 to 109.

Partly cloudy. Lows 71 to 75.

Mostly sunny. Highs 99 to 105.

Mostly clear. Lows 68 to 72.

Sunny. Highs 95 to 101.

Mostly clear. Lows 63 to 68.

Mostly sunny. Highs 91 to 97.

Mostly clear. Lows 62 to 67.

Mostly sunny. A slight chance of showers in the afternoon. Highs 90 to 95.

Clear. Low temperature around 67F. Dew point will be around 55F with an average humidity of 56%. Winds will be 6 mph from the W.

Sunny. High temperature around 86F. Dew point will be around 55F with an average humidity of 42%. Winds will be 7 mph from the SW.

Mostly clear. Low temperature around 68F. Dew point will be around 57F with an average humidity of 58%. Winds will be 6 mph from the SW.

Sunny. High temperature around 90F. Dew point will be around 57F with an average humidity of 41%. Winds will be 7 mph from the SW.

Clear. Low temperature around 69F. Dew point will be around 59F with an average humidity of 59%. Winds will be 6 mph from the SW.