Monday
Sunny
High:
94°F
Sunny, with a high near 94.
Ontario, CA Weather - Extended Forecast
Monday Night
Partly cloudy
Overnight low:
67°F
Partly cloudy, with a low around 67.
Tuesday
Mostly sunny
High:
92°F
Mostly sunny, with a high near 92.
Tuesday Night
Partly cloudy
Overnight low:
66°F
Partly cloudy, with a low around 66.
Wednesday
Sunny
High:
89°F
Wednesday Night
Mostly clear
Overnight low:
64°F
Thursday
Mostly sunny
High:
87°F
Thursday Night
Mostly clear
Overnight low:
63°F
Friday
Sunny
High:
86°F