From KSFY Television Meteorologist Shawn Cable

Our weather pattern will become a bit more active for the last half of the week. Scattered thunderstorms are likely today, tonight and again tomorrow with a few isolated thunderstorms hanging around as we head into the weekend.

This morning, rain and thunderstorms have already developed across central and western South Dakota and these storms will continue to move east throughout the day. The line of storms will roll toward Sioux Falls and I-29 this morning with a chance of scattered thunderstorms continuing through early to mid afternoon. Thunderstorms will exit from west to east this afternoon and leave us with some sunshine later this afternoon into this evening. High temps will reach the mid to upper 70s later today.

One or two storms could become severe later today, especially along and south of I-90. The best chance of severe weather will be this afternoon and evening across the extreme southeastern tip of South Dakota, western Iowa and eastern Nebraska.

Our second wave will bring showers and thunderstorms late tonight through most of the day tomorrow. The severe weather potential tomorrow is a bit higher than it is today, especially along and east of the James River. Some storms could produce large hail, strong straight-line wind gusts and even an isolated tornado. The chance of storms will continue through Friday night, decreasing into Saturday morning.

In addition to the potential for severe weather, thunderstorms both today and tomorrow will have the potential to produce locally heavy rainfall amounts of one-half inch or more. Be sure to have a weather radio, the KSFY weather app or some other means of getting updates on developing weather over the next several days.

While the chance of thunderstorms will diminish considerably as we head into the weekend, there is still a chance of a scattered thunderstorm or two on both Saturday and Sunday. In between there should be plenty of sunshine with highs reaching the mid to upper 70s on both days.

For the complete forecast, check out KSFY TV's Weather Page.

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