Typical Weather in Sioux City, IA in May

71° F Avg High

48° F Avg Low

9 Rainy Days

☀️ Temperature Summary

May is one of the warmer months of the year for Sioux City, with highs averaging around 71°F. Lows overnight are typically around 48°F. Temperatures will generally increase as the month goes on, with daily high temperatures ranging between 66°F and 77°F.

High Temps Throughout the Year

☔ Rain Summary

In May you can expect close to a 30% chance of rain for any given day. It rains more than usual in May, with total rainfall for the month typically near 5 inches.

Rainfall Throughout the Year

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📍 Nearby Cities in May

81°F / 58°F
80°F / 52°F
72°F / 50°F
68°F / 46°F
69°F / 47°F
74°F / 51°F

📅 Year Round Weather in Sioux City

31°F / 10°F
32°F / 10°F
49°F / 25°F
60°F / 35°F
71°F / 48°F
84°F / 60°F
87°F / 64°F
83°F / 61°F
78°F / 53°F
63°F / 38°F
49°F / 25°F
36°F / 16°F
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