Typical Weather in Sioux City, IA in August
83° F Avg High
61° F Avg Low
7 Rainy Days
☀️ Temperature Summary
August is a popular time to visit, with an inviting climate featuring warm temperatures. August is one of the warmer months of the year for Sioux City, with highs averaging around 83°F. Overnight lows will be around 61°F on average.
August is a great time to visit Sioux City, 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 August you can expect close to a 22% chance of rain for any given day. It rains more than usual in August, with total rainfall for the month typically near 4 inches.
Rainfall Throughout the Year
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