As we go into Saturday evening and the overnight night hours, chances for widespread storms increase across much of South Dakota starting out in the west late tonight. Then in the early morning hours on Sunday, the showers and thunderstorms look to be more widespread. Eastern and southeastern South Dakota are in a slight chance for severe weather for the overnight hours. The main concern is high winds and hail, low temperatures in the mid to upper 40s.
Low pressure will be a prominent factor in our weather on Sunday. As it slowly moves east, wide spread showers and thunderstorms will pop up Sunday afternoon and last for a couple days. As the rain continues overnight Sunday into Monday, there is a chance for some rain/snow mix out in the west as the low pressure pulls cold air south.
The work week will see continuing rain chances as that low pressure will sit and spin over KELOLAND bringing on and off rain until it moves on. Once that low does move on, it looks like temps will recover quickly back to the upper 50s and lower 60s by next weekend.