Stormy weather expected in eastern SD amid July Fourth celebrations

One of the soggiest starts to summer in eastern South Dakota may persist into Independence Day celebrations.

The National Weather Service's latest forecast show periods of showers and storms could move into the state's south-central counties Wednesday afternoon and evening.

The chance for showers and storms expands east by Thursday, particularly during the afternoon and early evening, and especially near and north of Interstate 90, the NWS states.

In Sioux Falls, precipitation chances are highest at 7 a.m. Thursday, with rain potential tapering off to 30 to 40% between 10 a.m. and 7 p.m.

NWS says the additional Thursday rainfall may cause slight rises in river levels and produce ponding water because of the recent heavy rainfall and flooded rivers. Isolated flash flooding is possible in cities in southeastern South Dakota, including Chamberlain, Mitchell, Sioux City and Sioux Falls, Yankton.

Here's a look at what the next seven days could bring to Sioux Falls:

Wednesday night : Showers and thunderstorms likely, mainly before 1 a.m. Mostly cloudy, with a low around 62 degrees. West southwest wind around 5 mph becoming east southeast after midnight. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

July Fourth : Showers and possibly a thunderstorm, mainly before 9 a.m., then a chance of showers and thunderstorms after 9 a.m. High near 69. Northwest wind 5 to 10 mph becoming south southeast in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Thursday night : A 3% chance of showers and thunderstorms, mainly before 11 p.m. Mostly cloudy, with a low around 59. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.

Friday : A 30% chance of showers and thunderstorms, mainly before 1 p.m. Partly sunny, with a high near 75. North northwest wind 10 to 15 mph, with gusts as high as 20 mph.

Friday night : Partly cloudy, with a low around 58. North northwest wind 5 to 10 mph becoming light northwest in the evening.

Saturday : A 40% chance of showers and thunderstorms after 1 p.m. Mostly sunny, with a high near 77. Calm wind becoming west southwest around 5 mph in the morning.

Saturday night : A 40% chance of showers and thunderstorms. Partly cloudy, with a low around 60.

Sunday : A 30% chance of showers and thunderstorms. Partly sunny, with a high near 77.

Sunday night : Partly cloudy, with a low around 59.

Monday : Mostly sunny, with a high near 77.

Monday night : Mostly clear, with a low around 59.

Tuesday : Sunny, with a high near 79.

Tuesday night : Mostly clear, with a low around 60.

Wednesday : Sunny, with a high near 79.

This article originally appeared on Sioux Falls Argus Leader: Stormy weather expected in eastern SD amid July Fourth celebrations