Tuesday
Sunny
High:
75°F
Sunny, with a high near 75. Light west wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Ontario, CA Weather - Extended Forecast
Tuesday Night
Mostly clear
Overnight low:
53°F
Mostly clear, with a low around 53. Southwest wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Wednesday
Sunny
High:
79°F
Sunny, with a high near 79.
Wednesday Night
Mostly clear
Overnight low:
54°F
Mostly clear, with a low around 54.
Thursday
Sunny
High:
79°F
Thursday Night
Mostly clear
Overnight low:
55°F
Friday
Sunny
High:
79°F
Friday Night
Mostly clear
Overnight low:
55°F
Saturday
Sunny
High:
79°F
Saturday Night
Mostly clear
Overnight low:
55°F
Sunday
Patchy fog
High:
77°F