10-Day Weather Forecast - Rancho Cucamonga, CA

Mostly sunny this morning..becoming partly cloudy. Highs 97 to 104. Areas of winds west to 10 mph..becoming 10 to 15 mph with gusts to 30 mph this afternoon.

Partly cloudy. Lows 65 to 70. Areas of winds southwest 10 to 15 mph with gusts to 25 mph in the evening becoming light.

Partly cloudy in the morning..becoming mostly sunny. Highs 93 to 100. Areas of winds southwest to 10 mph..becoming west 10 to 20 mph with gusts to 30 mph in the afternoon.

Partly cloudy. Lows 64 to 69. Areas of winds southwest 10 to 15 mph with gusts to 25 mph in the evening becoming light.

Partly cloudy with a slight chance of showers. Highs 90 to 97. Light winds becoming west 10 to 15 mph in the afternoon. Chance of measurable precipitation 20 percent.

Partly cloudy. Lows 62 to 67.

Partly cloudy in the morning..becoming mostly sunny. Highs 88 to 94.

Mostly clear. Lows 59 to 64.

Partly cloudy. Highs 85 to 92.

Mostly clear. Lows 57 to 63.

Partly cloudy. Highs 85 to 92.

Mostly clear. Lows 58 to 63.

Partly cloudy in the morning..becoming mostly sunny. Highs 87 to 93.

Clear. Low temperature around 65F. Dew point will be around 64F with an average humidity of 80%. Winds will be 7 mph from the SW.

Sunny. High temperature around 85F. Dew point will be around 64F with an average humidity of 62%. Winds will be 8 mph from the SW.

Clear. Low temperature around 66F. Dew point will be around 65F with an average humidity of 80%. Winds will be 7 mph from the SW.

Sunny. High temperature around 86F. Dew point will be around 64F with an average humidity of 59%. Winds will be 8 mph from the SW.

Mostly clear. Low temperature around 66F. Dew point will be around 64F with an average humidity of 78%. Winds will be 6 mph from the SW.