Friday
Sunny
High:
79°F
Sunny, with a high near 79.
Ontario, CA Weather - Extended Forecast
Friday Night
Mostly clear
Overnight low:
52°F
Mostly clear, with a low around 52.
Saturday
Mostly sunny
High:
76°F
Mostly sunny, with a high near 76.
Saturday Night
Partly cloudy
Overnight low:
52°F
Partly cloudy, with a low around 52.
Sunday
Sunny
High:
75°F
Sunday Night
Mostly clear
Overnight low:
50°F
Monday
Sunny
High:
75°F
Monday Night
Partly cloudy
Overnight low:
52°F
Tuesday
Sunny
High:
75°F