Typical Weather in Sioux Falls, SD in September
76° F Avg High
54° F Avg Low
5 Rainy Days
☀️ Temperature Summary
September is a popular time of year to visit, with an inviting climate characterized by warm temperatures. September is one of the warmer months of the year for Sioux Falls, with highs averaging around 76°F. You can expect overnight lows near 54°F most days. Daily high temperatures can range between 79°F and 68°F for the month of September.
September is a great time to visit Sioux Falls, with mild temperatures and sunny days being very common.
High Temps Throughout the Year
🎒 What to Pack
Pick up a few of these items to keep your trip fun and comfortable.
☔ Rain Summary
In September you can expect close to a 15% chance of rain for any given day. It rains more than usual in September, with total rainfall for the month typically near 3 inches.
Rainfall Throughout the Year
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