Sioux Falls, SD
Showers and thunderstorms continue to develop across the plains this morning, part of an active forecast the next 24 hours. We expect a 50% chance of rain this afternoon for Sioux Falls, with a 70% chance of rain tonight. Highs will be cooler with the rain, around 82 . Aberdeen will be a little warmer with lesser chances of rain. Pierre will be in the mid 80s along with Rapid City along with a 40% chance of showers and thunderstorms.
Thunderstorm chances will continue tonight, but the best opportunity for rain will be across the southeast where Sioux Falls will have a 70% chance of rain. Over 1” of rain is quite likely with some of these thunderstorms.
Thunderstorm chances will drop to 20-30% tomorrow with highs in the lower to middle 80s.
Hotter and more humid weather is ahead for the start of the weekend with 90s likely. The heat index in southeastern KELOLAND may be close to 100. Thunderstorm chances will continue each day, but the lowest chances would be Saturday afternoon as the heat becomes the big weather story. Sounds like typical JazzFest weather. Here's a closer look at the forecast.
Cooler weather should arrive Sunday with a drop in humidity.
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