10-Day Weather Forecast - Ontario, CA

Mostly sunny. Highs 83 to 88. Light winds becoming west 10 to 15 mph with gusts to 25 mph this afternoon.

Mostly clear in the evening. . . Becoming partly cloudy. Cooler. Lows around 50 in wind sheltered areas to 50 to 56 in warmer locations. Areas of winds west 10 to 15 mph becoming south overnight.

Partly cloudy in the morning. . . Becoming mostly sunny. Highs 70 to 76. Areas of winds south 10 to 15 mph. Gusts to 25 mph in the afternoon.

Mostly clear. Patchy fog overnight. Lows around 43 in wind sheltered areas to 44 to 52 in warmer locations. Areas of winds south to 10 mph in the evening becoming light.

Patchy fog in the morning. Mostly sunny. Highs 75 to 80. Light winds becoming west to 10 mph in the afternoon.

Mostly clear. Lows 46 to 52.

Partly cloudy. Highs 75 to 80.

Mostly clear in the evening. . . Becoming partly cloudy. Lows 44 to 50.

Mostly sunny. Highs 73 to 78.

Clear. Lows 44 to 51.

Mostly sunny. Highs 72 to 77.

Mostly clear. Lows 44 to 52.

Mostly sunny. Highs 74 to 80.

Clear. Low temperature around 56F. Dew point will be around 31F with an average humidity of 31%. Winds will be 8 mph from the NE.

Sunny. High temperature around 80F. Dew point will be around 34F with an average humidity of 25%. Winds will be 5 mph from the NE.

Clear. Low temperature around 55F. Dew point will be around 41F with an average humidity of 47%. Winds will be 2 mph from the SW.

Sunny. High temperature around 75F. Dew point will be around 44F with an average humidity of 39%. Winds will be 5 mph from the SW.

Mostly clear. Low temperature around 53F. Dew point will be around 48F with an average humidity of 67%. Winds will be 3 mph from the SW.

Sunny. High temperature around 74F. Dew point will be around 46F with an average humidity of 44%. Winds will be 4 mph from the SW.

Clear. Low temperature around 53F. Dew point will be around 46F with an average humidity of 64%. Winds will be 2 mph from the SW.