Tuesday
Sunny
High:
82°F
Sunny, with a high near 82.
Ontario, CA Weather - Extended Forecast
Tuesday Night
Mostly clear
Overnight low:
54°F
Mostly clear, with a low around 54.
Wednesday
Mostly sunny
High:
77°F
Mostly sunny, with a high near 77.
Wednesday Night
Mostly clear
Overnight low:
53°F
Mostly clear, with a low around 53.
Thursday
Sunny
High:
78°F
Thursday Night
Partly cloudy
Overnight low:
53°F
Friday
Mostly sunny
High:
76°F
Friday Night
Partly cloudy
Overnight low:
52°F
Saturday
Patchy fog
High:
71°F