Sioux Falls, SD
Some areas of dense fog have developed this morning across KELOLAND, especially in the north and east. That fog should burn off by late morning with warmer temperatures in the forecast. Highs will be in the mid to upper 80s in the east, with mid to upper 90s for both Pierre and Rapid City. Winds will be breezy too at 15-25mph from the south.
We expect a mild night tonight with isolated t-storms north and west of Sioux Falls as a warm front lifts through KELOLAND. This will make way for a warmer day East River tomorrow with highs into the upper 80s to lower 90s. A cold front will be passing across western areas and that will keep the mercury much lower in the northwest, where Buffalo will only be in the mid 70s.
Areas of showers and t-storms will develop along and behind that front tomorrow night and Friday morning. Cooler air will continue to move into KELOLAND Friday and into the weekend. In fact, a secondary cold front is expected on Saturday and that may trigger additional scattered showers and t-showers. Highs will be in the 70s in most areas this Labor Day weekend, with our eastern counties struggling to hit 70 on Sunday!