Sioux Falls, SD – Residents across Sioux Falls and surrounding areas should brace for a wet and stormy Sunday, with a 90% chance of thunderstorms and rainfall totals reaching a quarter inch by evening. High rainfall probabilities continue through Monday, potentially impacting travel, especially along I-29, as water accumulates on roadways and localized flooding risks increase.
According to the U.S. National Weather Service in Sioux Falls, chances for storms increase after 10 a.m. Sunday, with peak intensity expected in the late afternoon. The rain is forecasted to continue intermittently through Monday night, with showers transitioning to light rain or drizzle by Monday morning. Northwest Iowa, particularly, is expected to see the heaviest rainfall accumulation, with an 80% to 90% probability of receiving at least 0.25 inches of rain in the next 24 hours.
Sunday’s high is projected to reach around 59°F with gusty southeast winds up to 20 mph. The storm system could result in reduced visibility on highways and slick conditions, so motorists are advised to exercise caution. By Monday, temperatures will drop slightly to 54°F as clouds linger and rain chances continue through midday.
Looking ahead, the weather is expected to clear up by Tuesday, bringing sunny skies and a high of 50°F. Tuesday night and Wednesday should see mostly clear skies with lows in the 30s and highs near 53°F, marking a return to more stable conditions.
Local officials advise Sioux Falls residents to secure outdoor items and monitor weather alerts as the storm progresses. Travelers should consider delaying trips until conditions improve. For real-time updates, check local weather reports and stay alert for any flood advisories that may be issued.
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