Excessive Rainfall and Significant Flooding in the Upper Midwest This Weekend

Heavy to excessive rainfall is expected over the weekend across eastern Iowa, northern Missouri, northwest Illinois and southern Wisconsin. Numerous flash floods, some with significant impacts, are expected in these areas. Heaviest rainfall will occur overnight Saturday and Sunday, so be sure to have multiple ways to receive warnings. Read More >

Hazardous Weather Conditions

Current conditions at

Madison, Dane County Regional-Truax Field (KMSN)

Lat: 43.14°NLon: 89.35°WElev: 860ft.

Mostly Cloudy

82°F

28°C

Humidity	72%
Wind Speed	S 15 G 23 mph
Barometer	29.96 in (1013.6 mb)
Dewpoint	72°F (22°C)
Visibility	10.00 mi
Heat Index	87°F (31°C)
Last update	8 Aug 8:53 pm CDT

More Information:

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

Extended Forecast for

Cottage Grove WI

Flood Watch August 9, 04:00pm until August 11, 07:00am

Click here for hazard details and duration

Flood Watch

Tonight
Low: 74 °F
Partly Cloudy
Saturday
High: 87 °F
Partly Sunny
then Showers
Likely
Saturday Night
Low: 69 °F
T-storms then
Heavy Rain
Sunday
High: 81 °F
Showers
Likely
Sunday Night
Low: 68 °F
Chance
T-storms then
Showers
Likely
Monday
High: 80 °F
Showers
Likely
Monday Night
Low: 65 °F
Chance
T-storms
Tuesday
High: 82 °F
Chance
Showers then
Chance
T-storms
Tuesday Night
Low: 63 °F
Slight Chance
Showers

Detailed Forecast

Tonight

Partly cloudy, with a low around 74. South wind around 10 mph.

Saturday

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Partly sunny, with a high near 87. Heat index values as high as 95. South wind 10 to 15 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday Night

Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 69. South wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

Sunday

Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 81. Southwest wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between three quarters and one inch possible.

Sunday Night

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 68. South wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.

Monday

Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 80. Southwest wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Monday Night

A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Southwest wind around 5 mph becoming calm in the evening.

Tuesday

A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 82. Calm wind becoming west around 5 mph in the morning. Chance of precipitation is 30%.

Tuesday Night

A 20 percent chance of showers before 1am. Partly cloudy, with a low around 63.

Wednesday

Mostly sunny, with a high near 83.

Wednesday Night

A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 63.

Thursday

A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83.

Thursday Night

A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 66.

Friday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.