Sioux Falls, South Dakota – Soaking storms and strong winds are heading for Sioux Falls Tuesday night, with rain chances spiking to 80% after 7 p.m.
According to the National Weather Service in Sioux Falls, scattered showers and isolated thunderstorms may begin after 1 p.m. Tuesday, but the main wave of heavy rainfall is expected late Tuesday into early Wednesday. Winds will shift from the south to the north overnight, with gusts as high as 20 mph.
Residents along I-29 and in central Minnehaha County should prepare for possible ponding on roads and reduced visibility. Localized flash flooding is possible during heavier downpours. Make sure gutters are clear and avoid low-lying areas if driving at night.
Tuesday’s high will hit near 92°F, but rain-cooled air will drop lows to 65°F overnight. By Wednesday, conditions remain unsettled, with a 30% chance of lingering thunderstorms before 1 p.m. Afternoon highs will fall to 78°F — a noticeable cool down from Monday’s heat.
Thursday brings partly sunny skies and a more comfortable high of 75°F. The weekend turns warmer, with highs climbing back into the mid-80s and mostly dry conditions expected through Sunday.
âš¡ Five-Day Weather Outlook for Sioux Falls:
- Tuesday (High 92°F / Low 65°F): 80% chance of heavy rain and storms, mainly after 7 p.m.
- Wednesday (High 78°F / Low 59°F): Showers possible early, then gradual clearing
- Thursday (High 75°F / Low 57°F): Partly sunny and cooler
- Friday (High 81°F / Low 65°F): Mostly sunny with a slight overnight storm chance
- Saturday–Sunday (Highs near 84°F): Warm, partly sunny, low storm risk — classic mid-July weekend weather
Stay weather-aware and check back for updates as Tuesday’s storm window approaches.
