Fontana, CA Weather - Extended Forecast

Saturday

Chance of thunderstorms

High:
98°F

A chance of showers and thunderstorms, mainly before 11am. Mostly sunny, with a high near 98. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Chance of precipitation is 30%.

Saturday Night

Slight chance of thunderstorms

Overnight low:
75°F

A slight chance of showers and thunderstorms before 11pm. Mostly clear, with a low around 75. Chance of precipitation is 20%.

Sunday

Mostly sunny

High:
99°F

Mostly sunny, with a high near 99.

Sunday Night

Slight chance of thunderstorms

Overnight low:
73°F

A slight chance of showers and thunderstorms before 11pm. Mostly clear, with a low around 73.

Monday

Mostly sunny

High:
97°F

Monday Night

Partly cloudy

Overnight low:
70°F

Tuesday

Sunny

High:
93°F

Tuesday Night

Mostly clear

Overnight low:
67°F

Wednesday

Sunny

High:
91°F