Janesville, WI Weather - Extended Forecast

Thursday

Chance of thunderstorms

High:
88°F

A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Partly sunny, with a high near 88. Heat index values as high as 95. Calm wind becoming south around 5 mph in the morning. Chance of precipitation is 40%.

Thursday Night

Slight chance of thunderstorms

Overnight low:
70°F

A 50 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 70. South wind around 5 mph becoming calm in the evening.

Friday

Chance of showers

High:
86°F

A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Partly sunny, with a high near 86. Southeast wind around 5 mph becoming southwest in the afternoon. Chance of precipitation is 50%.

Friday Night

Slight chance of thunderstorms

Overnight low:
68°F

A 50 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 68. Calm wind.

Saturday

Chance of thunderstorms

High:
85°F

Saturday Night

Partly cloudy

Overnight low:
65°F

Sunday

Chance of showers

High:
82°F

Sunday Night

Mostly cloudy

Overnight low:
63°F

Labor Day

Chance of showers and thunderstorms

High:
78°F

Monday Night

Mostly cloudy

Overnight low:
59°F

Tuesday

Chance of showers

High:
77°F