Polk County (Des Moines)
May
Weather in Polk County, Iowa for May 2027
Your guide to Polk County weather in May - trends and predictions
In general, the average temperature in Polk County at the beginning of May is 18.4 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 23.6 °C by the end of May.
Polk County experiences moderate rainfall in May, with an average of 10 rainy days and a total precipitation of 142.7 mm.
Is May a good time to visit Polk County? check out the best time to travel to Polk County page.
✨ Is May a good time to visit Polk County? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
21
Dry days
10
Rainy days
0
Snow days
21°/11°
Temperatures
20 km/h
Avg max wind
71 %
Avg humidity
Polk County Weather May
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Temperatures trend during May in Polk County
See the weather trend as well as the moving average line
May weather in Polk County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Light rain | 17° /9° | 6.4 mm | 6 | |
| May 2 |  Moderate or heavy rain with thunder | 16° /7° | 12.4 mm | 5 | |
| May 3 |  Sunny | 20° /7° | 0.2 mm | 6 | |
| May 4 |  Heavy rain | 20° /8° | 6 mm | 6 | |
| May 5 |  Overcast | 17° /8° | 0.6 mm | 6 | |
| May 6 | Light rain | 18° /6° | 5.9 mm | 5 | |
| May 7 |  Moderate rain | 21° /9° | 11.2 mm | 6 | |
| May 8 |  Patchy rain possible | 20° /10° | 0.6 mm | 6 | |
| May 9 | Sunny | 19° /8° | 0.5 mm | 6 | |
| May 10 | Patchy rain possible | 23° /7° | 0.3 mm | 7 | |
| May 11 | Sunny | 24° /9° | 0 mm | 7 | |
| May 12 | Patchy rain possible | 24° /13° | 0.8 mm | 7 | |
| May 13 | Light rain | 21° /13° | 8 mm | 7 | |
| May 14 | Patchy rain possible | 24° /11° | 0 mm | 7 | |
| May 15 | Patchy rain possible | 26° /14° | 0.7 mm | 5 | |
| May 16 | Light rain | 24° /14° | 8.7 mm | 5 | |
| May 17 | Light rain | 23° /13° | 4.9 mm | 5 | |
| May 18 |  Thundery outbreaks possible | 24° /12° | 9.1 mm | 5 | |
| May 19 | Light rain | 18° /11° | 9.2 mm | 5 | |
| May 20 | Heavy rain | 16° /6° | 37.1 mm | 6 | |
| May 21 | Overcast | 17° /8° | 0 mm | 4 | |
| May 22 |  Cloudy | 20° /10° | 0.2 mm | 6 | |
| May 23 |  Partly cloudy | 22° /11° | 0.3 mm | 5 | |
| May 24 | Light rain | 22° /12° | 4.6 mm | 6 | |
| May 25 | Light rain | 21° /12° | 6.6 mm | 6 | |
| May 26 | Light rain | 23° /12° | 6.2 mm | 6 | |
| May 27 | Sunny | 23° /12° | 0.3 mm | 7 | |
| May 28 | Partly cloudy | 22° /13° | 0.3 mm | 7 | |
| May 29 | Partly cloudy | 22° /12° | 0 mm | 7 | |
| May 30 | Patchy rain possible | 26° /14° | 0.9 mm | 7 | |
| May 31 | Patchy rain possible | 28° /15° | 0.7 mm | 7 | |
| Next | |||||
Important Notice
Our weather forecast for Polk County in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Polk County forecast closer to your planned date for the most up-to-date weather information.
Change Month
Polk County in May - FAQ
What are the expected maximum and minimum temperatures in Polk County during May?
Enjoy moderate daytime temperatures of up to 21° and cooler nights around 11°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Polk County during May?
Significant rainfall exceeding 142.7 mm is expected in Polk County during May, occurring over more than 10 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Polk County during May?
The average wind speed in Polk County during May is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Polk County
Explore the daily rainfall trends and prepare for Polk Countys May weather 💧
Typically, Polk County has 10 rainy days in May with a total of 142.7 mm of rainfall.
UV exposure in Polk County during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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