Heavy Rain and Flash Flooding in the West; Heat Expands in the Central U.S.

Monsoonal moisture will produce showers and thunderstorms with heavy rain over parts of the Southwest, Great Basin, and Central Rockies through Monday. Flash flooding is possible, especially in and around burn scars and in areas of steep terrain. Heat will persist across the Central U.S. early this week, spreading into the Ohio Valley and Mid-Atlantic later this week. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Light Drizzle

73°F

23°C

Humidity	89%
Wind Speed	SW 9 mph
Barometer	29.97 in
Dewpoint	70°F (21°C)
Visibility	7.00 mi
Last update	30 Aug 2:45 pm CDT

More Information:

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

Extended Forecast for

Roscoe IL

This Afternoon
High: 76 °F
Showers
Likely
Tonight
Low: 70 °F
Chance
Showers
Monday
High: 87 °F
Chance
Showers then
Slight Chance
T-storms
Monday Night
Low: 72 °F
Mostly Cloudy
then Slight
Chance
T-storms
Tuesday
High: 89 °F
Slight Chance
T-storms
Tuesday Night
Low: 72 °F
Partly Cloudy
Wednesday
High: 90 °F
Mostly Sunny
Wednesday Night
Low: 69 °F
Partly Cloudy
then Chance
T-storms
Thursday
High: 85 °F
Chance
T-storms

Detailed Forecast

This Afternoon

Showers likely and possibly a thunderstorm. Mostly cloudy, with a steady temperature around 76. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

A 30 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 70. South wind 5 to 10 mph, with gusts as high as 20 mph.

Monday

A chance of showers and thunderstorms before noon, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 87. Southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

Monday Night

A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72. Southwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 10 mph.

Tuesday

A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 89. Light south southwest wind becoming southwest 5 to 10 mph in the morning.

Tuesday Night

Partly cloudy, with a low around 72.

Wednesday

Mostly sunny, with a high near 90.

Wednesday Night

A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69.

Thursday

A chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 85.

Thursday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 67.

Friday

Mostly sunny, with a high near 85.