Wednesday
Sunny
High:
76°F
Sunny, with a high near 76. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Ontario, CA Weather - Extended Forecast
Wednesday Night
Partly cloudy
Overnight low:
50°F
Partly cloudy, with a low around 50. West wind around 5 mph becoming northwest after midnight.
Thursday
Sunny
High:
71°F
Sunny, with a high near 71.
Thursday Night
Clear
Overnight low:
48°F
Clear, with a low around 48.
Friday
Sunny
High:
74°F
Friday Night
Clear
Overnight low:
51°F
Saturday
Sunny
High:
77°F
Saturday Night
Clear
Overnight low:
54°F
Sunday
Sunny
High:
81°F
Sunday Night
Mostly clear
Overnight low:
54°F
Monday
Sunny
High:
79°F