National Weather Service United States Department of Commerce

Flash flooding possible for parts of Upper Midwest

A slow-moving weather system progressing from the northern Plains to the Great Lakes will bring excessive rainfall and a risk of flash flooding to portions of the Upper Midwest on Friday. The heaviest rainfall is expected from central Iowa northeastward across southeastern Minn. and into Wisc. Rainfall totals of 1-2 inches, with locally-higher amounts, are possible through Saturday morning.
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Current Conditions

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Green Bay WI

7 Day Forecast

For More Weather Information:

Green Bay, WI Local Forecast Office

Tonight

Heavy Rain Chance for Measurable Precipitation 80%

Heavy
Rain

Low: 67 °F

Saturday

Thunderstorms Chance for Measurable Precipitation 80%

Thunderstorms

High: 78 °F

Saturday
Night

Chance Showers Chance for Measurable Precipitation 30%

Chance
Showers

Low: 60 °F

Sunday

Mostly Sunny

Mostly
Sunny

High: 76 °F

Sunday
Night

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

Low: 66 °F

Labor
Day

Thunderstorms Likely Chance for Measurable Precipitation 70%

Thunderstorms
Likely

High: 78 °F

Monday
Night

Partly Cloudy

Partly
Cloudy

Low: 58 °F

Tuesday

Chance Showers

Chance
Showers

High: 76 °F

Tuesday
Night

Partly Cloudy

Partly
Cloudy

Low: 57 °F

Detailed Forecast

  • Tonight Showers and thunderstorms, mainly after 1am. Some of the storms could produce heavy rain. Low around 67. South wind 7 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
  • Saturday Showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 4pm, then a chance of showers after 4pm. High near 78. South southwest wind 6 to 8 mph becoming west in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
  • Saturday Night A 30 percent chance of showers before 7pm. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 60. Northwest wind 5 to 7 mph becoming calm in the evening.
  • Sunday Mostly sunny, with a high near 76. Calm wind becoming south southeast 5 to 7 mph in the afternoon.
  • Sunday Night A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. South wind 7 to 9 mph.
  • Labor Day Showers and thunderstorms likely, mainly before 1pm. Mostly cloudy, with a high near 78. Chance of precipitation is 70%.
  • Monday Night Partly cloudy, with a low around 58.
  • Tuesday A chance of showers. Mostly sunny, with a high near 76.
  • Tuesday Night Partly cloudy, with a low around 57.
  • Wednesday Mostly sunny, with a high near 78.
  • Wednesday Night Partly cloudy, with a low around 59.
  • Thursday A chance of showers and thunderstorms. Mostly sunny, with a high near 79.
  • Thursday Night A chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
  • Friday A chance of showers and thunderstorms. Partly sunny, with a high near 73.