The temperatures in Iowa City in May are comfortable with low of 12°C and and high up to 21°C.
You can expect rain for roughly half of the month of May in Iowa City. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Iowa City in May 2025.
If you’re planning to visit Iowa City in the near future, we highly recommend that you review the 14 day weather forecast for Iowa City before you arrive.
Temperatures
21° / 12°
Rainy Days
10
Snowy Days
0
Dry Days
21
Rainfall
221
mm
Sun Hours
9.0
Hrs