Saturday
Mostly sunny
High:
69°F
Mostly sunny, with a high near 69. Light southwest wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 25 mph.
Ontario, CA Weather - Extended Forecast
Saturday Night
Chance of showers
Overnight low:
53°F
A chance of showers after 11pm. Increasing clouds, with a low around 53. Southwest wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Showers
High:
64°F
Showers. High near 64. Chance of precipitation is 90%.
Sunday Night
Chance of showers
Overnight low:
48°F
A chance of showers, mainly before 11pm. Mostly cloudy, with a low around 48. Chance of precipitation is 40%.
Monday
Chance of showers
High:
65°F
Monday Night
Partly cloudy
Overnight low:
48°F
Tuesday
Sunny
High:
72°F
Tuesday Night
Mostly clear
Overnight low:
50°F
Wednesday
Sunny
High:
76°F
Wednesday Night
Partly cloudy
Overnight low:
52°F
Thursday
Partly sunny
High:
76°F