10-Day Weather Forecast - Ontario, CA

Mostly sunny. Highs 92 to 99. Areas of winds west to 10 mph. . . Becoming 10 to 15 mph with gusts to 25 mph in the afternoon.

Mostly clear. Lows 61 to 67. Areas of winds west 10 to 15 mph in the evening becoming light.

Mostly sunny. Highs 95 to 102. Light winds becoming west 10 to 15 mph in the afternoon.

Mostly clear. Lows 61 to 66.

Mostly sunny. Highs 93 to 102.

Mostly clear. Lows 59 to 65.

Mostly sunny. Highs 90 to 98.

Mostly clear. Lows 58 to 63.

Partly cloudy. Highs 89 to 98.

Partly cloudy. Lows 59 to 64.

Partly cloudy. Highs 91 to 98.

Mostly clear. Low temperature around 70F. Dew point will be around 60F with an average humidity of 61%. Winds will be 6 mph from the W.

Sunny. High temperature around 95F. Dew point will be around 62F with an average humidity of 44%. Winds will be 8 mph from the W.

Clear. Low temperature around 75F. Dew point will be around 61F with an average humidity of 54%. Winds will be 6 mph from the W.

Sunny. High temperature around 95F. Dew point will be around 63F with an average humidity of 44%. Winds will be 8 mph from the W.

Clear. Low temperature around 76F. Dew point will be around 62F with an average humidity of 54%. Winds will be 6 mph from the W.

Sunny. High temperature around 96F. Dew point will be around 64F with an average humidity of 44%. Winds will be 8 mph from the W.

Clear. Low temperature around 76F. Dew point will be around 64F with an average humidity of 55%. Winds will be 6 mph from the W.