Sioux Falls, South Dakota – Thunderstorms with heavy rain could drench Sioux Falls by late Tuesday evening, threatening travel conditions and flooding along key roadways like I-29 and I-229.
According to the National Weather Service in Sioux Falls, there’s an 80% chance of thunderstorms Tuesday night, some potentially severe with downpours and lightning. Rain is likely to begin after 7 p.m. and could persist into Wednesday, with another 80% chance of precipitation during the day. Winds will shift southeast at 5 to 10 mph before midnight, increasing the risk of localized flooding in low-lying areas.
Drivers are urged to use caution Tuesday night, especially near underpasses and areas with poor drainage. Officials recommend avoiding unnecessary travel and keeping emergency kits and devices charged. Showers will taper slightly by Wednesday night but could return again Thursday evening.
With summer in full swing, the moisture-rich air is fueling instability, making Tuesday night’s storms more intense than typical late June systems. This pattern could persist through midweek, before a warm-up heading into the weekend.
What’s Next:
Another round of scattered storms is possible Thursday evening, with mostly sunny skies returning Friday. Temperatures are expected to climb into the upper 80s by week’s end.
🌤️ Five-Day Forecast for Sioux Falls (June 23–28):
- Monday: High 80°F – Decreasing clouds, light breeze
- Tuesday: High 75°F – 50% chance of storms by late afternoon
- Tuesday Night: Low 65°F – 80% chance of thunderstorms with heavy rain
- Wednesday: High 83°F – 80% chance of rain, breezy
- Thursday: High 83°F – 30% chance of showers at night
- Friday: High 89°F – Mostly sunny, summer heat returns
- Saturday: High 92°F – Mostly sunny and hot
- Sunday: High 86°F – 30% chance of storms in the afternoon
