Wednesday
Sunny
High:
97°F
Sunny, with a high near 97.
Ontario, CA Weather - Extended Forecast
Wednesday Night
Mostly clear
Overnight low:
73°F
Mostly clear, with a low around 73.
Thursday
Sunny
High:
96°F
Sunny, with a high near 96.
Thursday Night
Clear
Overnight low:
72°F
Clear, with a low around 72.
Friday
Sunny
High:
92°F
Friday Night
Clear
Overnight low:
67°F
Saturday
Sunny
High:
88°F
Saturday Night
Clear
Overnight low:
64°F
Sunday
Sunny
High:
89°F