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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5 Miles SSE Slaughter Beach DE

7 Day Forecast

For More Weather Information:

Philadelphia, PA Local Forecast Office

Tonight

Patchy Fog

Patchy
Fog

Low: 62 °F

Saturday

Patchy Fog

Patchy
Fog

High: 81 °F

Saturday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 71 °F

Sunday

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

High: 87 °F

Sunday
Night

Chance Thunderstorms Chance for Measurable Precipitation 50%

Chance
Thunderstorms

Low: 72 °F

Labor
Day

Chance Thunderstorms Chance for Measurable Precipitation 40%

Chance
Thunderstorms

High: 88 °F

Monday
Night

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

Low: 72 °F

Tuesday

Mostly Sunny

Mostly
Sunny

High: 86 °F

Tuesday
Night

Partly Cloudy

Partly
Cloudy

Low: 72 °F

Detailed Forecast

  • Tonight Patchy fog after 4am. Otherwise, partly cloudy, with a low around 62. Southeast wind around 6 mph becoming calm after midnight.
  • Saturday Patchy fog before 8am. Otherwise, mostly sunny, with a high near 81. Light southeast wind becoming south 5 to 10 mph in the morning.
  • Saturday Night Mostly cloudy, with a low around 71. South wind around 8 mph.
  • Sunday A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87. South wind 8 to 13 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
  • Sunday Night A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. South wind around 8 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
  • Labor Day A chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
  • Monday Night A chance of showers and thunderstorms. Partly cloudy, with a low around 72. Chance of precipitation is 30%.
  • Tuesday Mostly sunny, with a high near 86.
  • Tuesday Night Partly cloudy, with a low around 72.
  • Wednesday Mostly sunny, with a high near 87.
  • Wednesday Night Partly cloudy, with a low around 69.
  • Thursday Mostly sunny, with a high near 83.
  • Thursday Night Mostly clear, with a low around 69.
  • Friday Sunny, with a high near 81.