Thursday
Sunny
High:
73°F
Sunny, with a high near 73.
Ontario, CA Weather - Extended Forecast
Thursday Night
Clear
Overnight low:
52°F
Clear, with a low around 52.
Friday
Sunny
High:
77°F
Sunny, with a high near 77.
Friday Night
Mostly clear
Overnight low:
54°F
Mostly clear, with a low around 54.
Saturday
Sunny
High:
78°F
Saturday Night
Mostly clear
Overnight low:
55°F
Sunday
Mostly sunny
High:
77°F
Sunday Night
Partly cloudy
Overnight low:
54°F
Monday
Mostly sunny
High:
71°F