Ontario, CA Weather

Tonight
Mostly clear, with a low around 46. Southeast wind 0 to 10 mph.

Friday
Sunny, with a high near 72. Northwest wind 0 to 10 mph.

Friday Night
Partly cloudy, with a low around 47. West wind 0 to 10 mph, with gusts as high as 20 mph.

Saturday
A slight chance of rain between 11am and 5pm, then a chance of rain showers. Partly sunny, with a high near 67. West wind 0 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

Saturday Night
A chance of rain showers before 4am. Mostly cloudy, with a low around 48. West wind 0 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

Sunday
Sunny, with a high near 69.

Sunday Night
Mostly clear, with a low around 48.

Monday
Sunny, with a high near 72.

Monday Night
Clear, with a low around 47.

Tuesday
Sunny, with a high near 75.

Tuesday Night
Mostly clear, with a low around 50.

Wednesday
Mostly sunny, with a high near 74.

Wednesday Night
Partly cloudy, with a low around 50.

Thursday
Mostly sunny, with a high near 75.