Ontario, CA Weather - Extended Forecast

Monday

Patchy fog

High:
83°F

Patchy fog before 11am. Otherwise, sunny, with a high near 83. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

Monday Night

Mostly clear

Overnight low:
59°F

Mostly clear, with a low around 59.

Tuesday

Sunny

High:
84°F

Sunny, with a high near 84.

Tuesday Night

Mostly clear

Overnight low:
61°F

Mostly clear, with a low around 61.

Wednesday

Patchy fog

High:
86°F

Wednesday Night

Mostly clear

Overnight low:
61°F

Thursday

Sunny

High:
88°F

Thursday Night

Mostly clear

Overnight low:
62°F

Friday

Mostly sunny

High:
89°F