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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Mandan ND

7 Day Forecast

For More Weather Information:

Bismarck, ND Local Forecast Office

Tonight

Patchy Fog

Patchy
Fog

Low: 50 °F

Saturday

Patchy Fog

Patchy
Fog

High: 76 °F

Saturday
Night

Thunderstorms Chance for Measurable Precipitation 80%

Thunderstorms

Low: 60 °F

Sunday

Partly Sunny

Partly
Sunny

High: 74 °F

Sunday
Night

Partly Cloudy

Partly
Cloudy

Low: 52 °F

Labor
Day

Mostly Sunny

Mostly
Sunny

High: 73 °F

Monday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 52 °F

Tuesday

Sunny

Sunny

High: 76 °F

Tuesday
Night

Mostly Clear

Mostly
Clear

Low: 52 °F

Detailed Forecast

  • Tonight Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 50. North wind 5 to 9 mph becoming calm in the evening.
  • Saturday Patchy fog before 10am. Otherwise, mostly sunny, with a high near 76. Light southeast wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 22 mph.
  • Saturday Night Showers and thunderstorms. Low around 60. East wind 6 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
  • Sunday Partly sunny, with a high near 74. Northwest wind 9 to 13 mph.
  • Sunday Night Partly cloudy, with a low around 52. West wind 7 to 11 mph.
  • Labor Day Mostly sunny, with a high near 73.
  • Monday Night Mostly cloudy, with a low around 52.
  • Tuesday Sunny, with a high near 76.
  • Tuesday Night Mostly clear, with a low around 52.
  • Wednesday Sunny, with a high near 79.
  • Wednesday Night Partly cloudy, with a low around 56.
  • Thursday Mostly sunny, with a high near 77.
  • Thursday Night A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 56.
  • Friday Partly sunny, with a high near 67.