Saturday
Sunny
High:
92°F
Sunny, with a high near 92. Light west wind becoming southwest 5 to 10 mph in the afternoon.
Ontario, CA Weather - Extended Forecast
Saturday Night
Mostly clear
Overnight low:
65°F
Mostly clear, with a low around 65. Southwest wind around 5 mph becoming calm in the evening.
Sunday
Sunny
High:
93°F
Sunny, with a high near 93.
Sunday Night
Mostly clear
Overnight low:
65°F
Mostly clear, with a low around 65.
Monday
Sunny
High:
93°F
Monday Night
Partly cloudy
Overnight low:
65°F
Tuesday
Sunny
High:
93°F
Tuesday Night
Mostly clear
Overnight low:
66°F
Wednesday
Sunny
High:
96°F
Wednesday Night
Mostly clear
Overnight low:
69°F
Thursday
Sunny
High:
99°F