Wednesday
Sunny
High:
91°F
Sunny, with a high near 91.
Ontario, CA Weather - Extended Forecast
Wednesday Night
Mostly clear
Overnight low:
66°F
Mostly clear, with a low around 66.
Thursday
Sunny
High:
90°F
Sunny, with a high near 90.
Thursday Night
Mostly clear
Overnight low:
63°F
Mostly clear, with a low around 63.
Friday
Sunny
High:
86°F
Friday Night
Mostly clear
Overnight low:
61°F
Saturday
Sunny
High:
86°F
Saturday Night
Clear
Overnight low:
60°F
Sunday
Sunny
High:
87°F