Friday
Sunny
High:
71°F
Sunny, with a high near 71.
Ontario, CA Weather - Extended Forecast
Friday Night
Mostly clear
Overnight low:
48°F
Mostly clear, with a low around 48.
Saturday
Mostly sunny
High:
68°F
Mostly sunny, with a high near 68.
Saturday Night
Partly cloudy
Overnight low:
48°F
A slight chance of showers after 4am. Partly cloudy, with a low around 48.
Sunday
Chance of showers
High:
64°F
Sunday Night
Chance of showers and thunderstorms
Overnight low:
47°F
Monday
Sunny
High:
67°F
Monday Night
Mostly clear
Overnight low:
47°F
Tuesday
Sunny
High:
67°F