Tracking Storm System Across the Eastern U.S.

A storm system will continue to produce widespread showers and thunderstorms as it progresses eastward across the central U.S. into the Northeast through the weekend. There are risks of severe thunderstorms and excessive rainfall on Saturday from the Ozarks into the mid-Mississippi River Valley with potential for damaging winds, large hail, tornadoes, and flash flooding. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Rain

57°F

14°C

Humidity	88%
Wind Speed	N 7 mph
Barometer	29.62 in
Dewpoint	54°F (12°C)
Visibility	4.00 mi
Last update	18 Oct 11:10 pm CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Janesville WI

Tonight
Low: 47 °F
Showers
Sunday
High: 59 °F
Breezy.
Showers
Likely then
Sunny
Sunday Night
Low: 36 °F
Clear
Monday
High: 64 °F
Areas Frost
then Sunny
Monday Night
Low: 44 °F
Showers
Likely
Tuesday
High: 53 °F
Breezy.
Mostly Sunny
then Slight
Chance
Showers
Tuesday Night
Low: 39 °F
Slight Chance
Showers
Wednesday
High: 52 °F
Partly Sunny
Wednesday Night
Low: 31 °F
Mostly Clear

Detailed Forecast

Tonight

Showers and possibly a thunderstorm. Low around 47. Light and variable wind becoming northwest 10 to 15 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday

Showers likely, mainly before 9am. Cloudy through mid morning, then gradual clearing, with a high near 59. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Sunday Night

Clear, with a low around 36. Northwest wind 5 to 10 mph becoming light and variable after midnight.

Monday

Areas of frost before 8am. Otherwise, sunny, with a high near 64. South wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.

Monday Night

Showers likely, mainly before 1am. Mostly cloudy, with a low around 44. South wind 10 to 15 mph becoming west after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Tuesday

A 20 percent chance of showers after 1pm. Partly sunny, with a high near 53. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

Tuesday Night

A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 39. West wind around 15 mph, with gusts as high as 30 mph.

Wednesday

Partly sunny, with a high near 52. Northwest wind around 15 mph.

Wednesday Night

Mostly clear, with a low around 31.

Thursday

Sunny, with a high near 55.

Thursday Night

Partly cloudy, with a low around 35.