Ontario, CA Weather - Tomorrow’s Forecast

Thursday

Showers likely

High:
86°F

Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 86. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Thursday Night

Chance of showers

Overnight low:
67°F

A chance of showers and thunderstorms, mainly before 11pm. Mostly cloudy, with a low around 67. West wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.