Willmar (MN)
May
Weather in Willmar, Minnesota for May 2026
Your guide to Willmar weather in May - trends and predictions
In general, the average temperature in Willmar at the beginning of May is 18.1 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 19.9 °F by the end of May.
The climate of Willmar in May is notably wet, with an average of 14 rainy days, and a total of 113.3 mm of precipitation.
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Temperatures
Rain 🌧️
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17
Dry days
14
Rainy days
0
Snow days
18°/9°
Temperatures
26 km/h
Avg max wind
70 %
Avg humidity
Willmar Weather May
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Temperatures trend during May in Willmar
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May weather in Willmar day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Cloudy | 16° /7° | 2 mm | 4 | |
| May 2 |  Light rain shower | 11° /6° | 2.2 mm | 3 | |
| May 3 | Patchy rain possible | 19° /5° | 0.6 mm | 5 | |
| May 4 | Patchy rain possible | 18° /6° | 5 mm | 5 | |
| May 5 |  Partly cloudy | 21° /7° | 0 mm | 6 | |
| May 6 |  Overcast | 23° /9° | 2.7 mm | 6 | |
| May 7 |  Mist | 19° /10° | 8.1 mm | 5 | |
| May 8 | Patchy rain possible | 19° /5° | 0.1 mm | 5 | |
| May 9 | Patchy rain possible | 22° /7° | 0.1 mm | 6 | |
| May 10 | Overcast | 23° /8° | 0 mm | 6 | |
| May 11 | Partly cloudy | 26° /10° | 0 mm | 7 | |
| May 12 |  Thundery outbreaks possible | 28° /14° | 0 mm | 7 | |
| May 13 | Partly cloudy | 25° /12° | 0 mm | 7 | |
| May 14 |  Sunny | 24° /12° | 0 mm | 6 | |
| May 15 |  Light drizzle | 17° /12° | 10.1 mm | 4 | |
| May 16 | Patchy rain possible | 15° /6° | 27.2 mm | 4 | |
| May 17 | Partly cloudy | 16° /6° | 0 mm | 5 | |
| May 18 | Patchy rain possible | 17° /9° | 0 mm | 4 | |
| May 19 | Patchy rain possible | 16° /7° | 1.3 mm | 4 | |
| May 20 | Fog | 15° /9° | 47.9 mm | 4 | |
| May 21 | Light rain shower | 10° /5° | 34.7 mm | 3 | |
| May 22 | Thundery outbreaks possible | 18° /6° | 0.5 mm | 4 | |
| May 23 | Thundery outbreaks possible | 20° /8° | 0.7 mm | 5 | |
| May 24 | Light rain shower | 18° /8° | 3.2 mm | 4 | |
| May 25 | Light rain shower | 18° /8° | 1 mm | 4 | |
| May 26 | Patchy rain possible | 20° /11° | 0.9 mm | 5 | |
| May 27 |  Moderate or heavy rain with thunder | 18° /10° | 8.6 mm | 4 | |
| May 28 | Patchy light drizzle | 16° /9° | 0.4 mm | 4 | |
| May 29 | Partly cloudy | 20° /9° | 2.9 mm | 5 | |
| May 30 | Overcast | 24° /12° | 0 mm | 6 | |
| May 31 | Light rain shower | 23° /12° | 5.1 mm | 6 | |
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Important Notice
Our weather forecast for Willmar 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 Willmar forecast closer to your planned date for the most up-to-date weather information.
Change Month
Willmar in May - FAQ
What are the expected maximum and minimum temperatures in Willmar during May?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Willmar during May?
Significant rainfall exceeding 113.3 mm is expected in Willmar during May, occurring over more than 14 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Willmar during May?
The average wind speed in Willmar during May is 26 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Willmar
Explore the daily rainfall trends and prepare for Willmars May weather 💧
UV exposure in Willmar during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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Where is Willmar?Get accurate weather forecasts for Willmar, located at latitude 45.122 and longitude -95.043. Stay updated with localized weather information tailored for Willmar.
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