Labor Day
Sunny
High:
90°F
Sunny, with a high near 90. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Ontario, CA Weather - Extended Forecast
Monday Night
Mostly clear
Overnight low:
68°F
Mostly clear, with a low around 68.
Tuesday
Sunny
High:
92°F
Sunny, with a high near 92.
Tuesday Night
Mostly clear
Overnight low:
70°F
Mostly clear, with a low around 70.
Wednesday
Sunny
High:
95°F
Wednesday Night
Mostly clear
Overnight low:
71°F
Thursday
Sunny
High:
94°F
Thursday Night
Mostly clear
Overnight low:
69°F
Friday
Sunny
High:
91°F