A Large and Slow-Moving Storm System Producing Thunderstorms and Heavy Rain

A slow-moving and large storm system will produce widespread strong to severe thunderstorms and heavy rainfall with possible flooding from the Midwest and Ohio Valley to the Southern U.S. into late week. Record-breaking heat is possible in central California. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

En Español

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Light Rain Fog/Mist

55°F

13°C

Humidity	77%
Wind Speed	E 15 G 26 mph
Barometer	29.97 in
Dewpoint	48°F (9°C)
Visibility	2.00 mi
Wind Chill	51°F (11°C)
Last update	25 May 7:45 am CDT

More Information:

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

Extended Forecast for

South Beloit IL

Today

Showers
High: 70 °F
Tonight

Showers
Likely then
Scattered
T-storms
Low: 62 °F
Thursday

Showers
Likely
High: 70 °F
Thursday
Night

Showers
Likely
Low: 53 °F
Friday

Chance
Showers
High: 69 °F
Friday
Night

Mostly Clear
Low: 49 °F
Saturday

Mostly Sunny
High: 75 °F
Saturday
Night

Partly Cloudy
Low: 58 °F
Sunday

Mostly Sunny
then Partly
Sunny and
Breezy
High: 81 °F

Detailed Forecast

Today

Showers before 1pm, then scattered showers and thunderstorms between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. High near 70. East southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Tonight

Showers likely and possibly a thunderstorm before 11pm, then scattered showers and thunderstorms between 11pm and 4am, then scattered showers after 4am. Mostly cloudy, with a low around 62. South southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday

Scattered showers before 10am, then scattered showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 70. South southwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Thursday Night

Showers likely and possibly a thunderstorm before 1am, then scattered showers and thunderstorms after 1am. Mostly cloudy, with a low around 53. North wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 60%.

Friday

A 30 percent chance of showers, mainly before 10am. Partly sunny, with a high near 69. North wind around 10 mph, with gusts as high as 15 mph.

Friday Night

Mostly clear, with a low around 49.

Saturday

Mostly sunny, with a high near 75.

Saturday Night

Partly cloudy, with a low around 58.

Sunday

Mostly sunny, with a high near 81. Breezy.

Sunday Night

Mostly cloudy, with a low around 68. Breezy.