Sioux City weather in May
Mild and comfortable, with some rainy days. Average highs of 22°C and lows of 11°C, with around 13 rainy days expected throughout the month.
While May isn't our top-rated month for Sioux City, it has its own appeal — typically lower prices, fewer crowds, and a more local feel.
Average high
22°C
Average low
11°C
Rainy days
13 days
Best months to visit
June, July, August, September
What to do in Sioux City in May
Whatever the weather, Sioux City rewards curious visitors. Here are some of the best ways to spend your time:
Explore
Dine
Culture
Nature
Shopping
Day trips
What to pack for May
Light layers work well — T-shirts and shorts for the day, a light jacket for evenings. Comfortable walking shoes are a must. Bring a compact umbrella just in case.
Browse other months
January
-1C
Cold, with occasional showers.
February
0C
Cold, with occasional showers.
March
9C
Cold, with occasional showers.
April
15C
Cool, with occasional showers.
May (you are here)
22C
Mild and comfortable, with some rainy days.
Recommended
June
28C
Warm and pleasant, with some rainy days.
Recommended
July
29C
Warm and pleasant, with occasional showers.
Recommended
August
28C
Warm and pleasant, with occasional showers.
Recommended
September
25C
Warm and pleasant, with occasional showers.
October
16C
Cool, with occasional showers.
November
8C
Cold, with occasional showers.
December
2C
Cold, with occasional showers.
Book your May trip to Sioux City
Find hotels, tours and experiences for the perfect escape.
