Friday
Patchy fog
High:
75°F
Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 75. Light southwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Ontario, CA Weather - Extended Forecast
Friday Night
Clouds increasing
Overnight low:
54°F
Increasing clouds, with a low around 54. West wind 5 to 10 mph becoming light southwest after midnight. Winds could gust as high as 20 mph.
Saturday
Patchy fog
High:
71°F
Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 71.
Saturday Night
Chance of showers and thunderstorms
Overnight low:
50°F
A slight chance of showers. Mostly cloudy, with a low around 50. Chance of precipitation is 20%.
Sunday
Chance of showers
High:
60°F
Sunday Night
Slight chance of thunderstorms
Overnight low:
50°F
Monday
Mostly cloudy
High:
61°F
Monday Night
Mostly cloudy
Overnight low:
51°F
Tuesday
Mostly sunny
High:
70°F
Tuesday Night
Partly cloudy
Overnight low:
53°F
Wednesday
Sunny
High:
74°F