Ontario, CA 91758

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Change Units: °F  | °C

Weekend Forecast

Ontario, CA 91758



Lo: 49°

Clear. Lows 44 to 54. Light winds.



Hi: 70°

Mostly sunny in the morning, then partly cloudy with a slight chance of showers in the afternoon. Highs 65 to 70.

Lo: 43°

Partly cloudy in the evening...becoming mostly clear. Lows 39 to 48.



Hi: 73°

Mostly sunny. Highs 68 to 73.

Lo: 43°

Mostly clear. Lows 38 to 48.

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