Tuesday
Sunny
High:
89°F
Sunny, with a high near 89. Light and variable wind becoming east 5 to 10 mph in the afternoon.
Ontario, CA Weather - Extended Forecast
Tuesday Night
Clear
Overnight low:
62°F
Clear, with a low around 62.
Wednesday
Sunny
High:
89°F
Sunny, with a high near 89.
Wednesday Night
Clear
Overnight low:
61°F
Clear, with a low around 61.
Thursday
Sunny
High:
87°F
Thursday Night
Mostly clear
Overnight low:
59°F
Friday
Sunny
High:
86°F
Friday Night
Mostly clear
Overnight low:
61°F
Saturday
Sunny
High:
87°F