Sioux Falls, South Dakota – Scattered thunderstorms, some potentially strong, are expected to develop late Thursday evening between Huron and Chamberlain, bringing lightning, downpours, and gusty winds across central South Dakota.
According to the National Weather Service in Sioux Falls, the most active period for storms will be overnight Thursday into early Friday, with a 40% chance of showers, especially south of Interstate 90. The pattern continues through the weekend, with storm chances peaking Saturday night at 60% and again on Monday with a 70% likelihood of thunderstorms.
Cities like Mitchell, Pierre, Brookings, and Yankton should expect periodic evening and overnight showers through Monday. Heavier rainfall and localized flooding are possible Sunday into Monday. Highs will climb into the upper 80s and low 90s, with muggy conditions lingering statewide.
Residents are advised to avoid outdoor plans during evening hours, secure loose items, and have weather alerts enabled on mobile devices. If driving during storms, use caution on rural highways where visibility may quickly drop.
Storm chances remain in the forecast through Monday evening, with additional updates expected daily as timing and intensity become clearer.
🌀 Four Day South Dakota Weather Outlook
- Friday: 20–40% storm chance, highs 73–90°F
- Saturday: 30% daytime, 60% nighttime storms, highs 80–89°F
- Sunday: 50% chance of thunderstorms, highs 84–91°F
- Monday: 30% daytime, 70% nighttime storms, highs 87–93°F
