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Flood impact categories will change for Little Calumet River in Cook County, Illinois, on June 3, 2024

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Mostly Cloudy

81°F

27°C

Humidity	30%
Wind Speed	E 5 mph
Barometer	29.95 in
Dewpoint	46°F (8°C)
Visibility	10.00 mi
Heat Index	80°F (27°C)
Last update	19 May 5:45 pm CDT

More Information:

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

Extended Forecast for

Roscoe IL

Tonight
Low: 60 °F
Mostly Cloudy
then Slight
Chance
Showers
Monday
High: 81 °F
T-storms
Likely
Monday Night
Low: 63 °F
T-storms
Likely then
Showers
Likely
Tuesday
High: 86 °F
Chance
T-storms and
Breezy
Tuesday Night
Low: 59 °F
T-storms and
Breezy
Wednesday
High: 71 °F
Breezy.
Slight Chance
T-storms then
Slight Chance
Showers
Wednesday Night
Low: 50 °F
Mostly Clear
Thursday
High: 74 °F
Sunny
Thursday Night
Low: 51 °F
Mostly Clear

Detailed Forecast

Tonight

A 10 percent chance of showers after 5am. Mostly cloudy, with a low around 60. East southeast wind 5 to 10 mph.

Monday

Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 81. South southeast wind 10 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts between three quarters and one inch possible.

Monday Night

Showers and thunderstorms likely before 10pm, then showers likely and possibly a thunderstorm between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. Southwest wind 5 to 10 mph becoming south southeast after midnight. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tuesday

A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

Tuesday Night

Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Low around 59. Breezy, with a south wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.

Wednesday

A slight chance of thunderstorms before 7am, then a slight chance of showers after 1pm. Mostly sunny, with a high near 71. Breezy. Chance of precipitation is 20%.

Wednesday Night

Mostly clear, with a low around 50.

Thursday

Sunny, with a high near 74.

Thursday Night

Mostly clear, with a low around 51.

Friday

Mostly sunny, with a high near 77.

Friday Night

A chance of showers. Mostly cloudy, with a low around 56.

Saturday

A chance of showers and thunderstorms. Partly sunny, with a high near 77.