Columbia County (Wisconsin Dells)
May
Weather in Columbia County, Wisconsin for May 2026
Your guide to Columbia County weather in May - trends and predictions
Until now, May 2026 in Columbia County has been significantly cooler than historical averages by -2 °F, with average temperature of 13.9 °F.
The forecast for the upcoming days in Columbia County predicts a temperature of 20.7 °F, which is slightly above the historical average.
In general, the average temperature in Columbia County at the beginning of May is 15.4 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 19.1 °F by the end of May.
Columbia County in May brings notable rainfall, with an average of 16 rainy days and a total precipitation of 176.1 mm.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
15
Dry days
16
Rainy days
0
Snow days
18°/8°
Temperatures
20 km/h
Avg max wind
75 %
Avg humidity
Columbia County Weather May
Move between months or click on a day
Temperatures trend during May in Columbia County
See the weather trend as well as the moving average line
May weather in Columbia County day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Partly cloudy | 13° /5° | 1.9 mm | 5 | |
| May 2 |  Moderate rain | 12° /4° | 17 mm | 5 | |
| May 3 |  Mist | 17° /6° | 1.5 mm | 5 | |
| May 4 | Moderate rain | 17° /5° | 1.7 mm | 5 | |
| May 5 | Mist | 16° /4° | 0 mm | 6 | |
| May 6 |  Sunny | 16° /4° | 0 mm | 6 | |
| May 7 |  Light rain shower | 17° /6° | 3.9 mm | 5 | |
| May 8 |  Thundery outbreaks possible | 19° /4° | 0.7 mm | 6 | |
| May 9 | Light rain shower | 17° /5° | 9 mm | 5 | |
| May 10 | Patchy rain possible | 12° /2° | 0.2 mm | 6.7 | |
| May 11 | Sunny | 16° /1° | 0 mm | 6.9 | |
| May 12 | Moderate rain | 21° /6° | 5.3 mm | 0 | |
| May 13 | Partly cloudy | 17° /9° | 0 mm | 4 | |
| May 14 | Sunny | 20° /6° | 0 mm | 4 | |
| May 15 | Partly cloudy | 26° /15° | 0 mm | 6 | |
| May 16 | Patchy rain possible | 23° /14° | 0.2 mm | 4 | |
| May 17 | Partly cloudy | 22° /13° | 0.1 mm | 5 | |
| May 18 | Patchy rain possible | 25° /17° | 0.5 mm | 5 | |
| May 19 | Partly cloudy | 24° /15° | 0 mm | 5 | |
| May 20 | Patchy rain possible | 23° /15° | 4.2 mm | 4 | |
| May 21 | Partly cloudy | 18° /8° | 0 mm | 4 | |
| May 22 | Moderate rain | 22° /11° | 5.6 mm | 4 | |
| May 23 |  Overcast | 19° /8° | 0 mm | 5 | |
| May 24 |  Patchy light rain with thunder | 19° /8° | 1.4 mm | 5 | |
| May 25 | Partly cloudy | 19° /7° | 0 mm | 5 | |
| May 26 |  Moderate or heavy rain with thunder | 18° /9° | 6.2 mm | 4 | |
| May 27 | Patchy rain possible | 18° /10° | 0.6 mm | 4 | |
| May 28 | Light rain shower | 17° /10° | 8.2 mm | 4 | |
| May 29 | Patchy rain possible | 19° /9° | 0.7 mm | 5 | |
| May 30 | Sunny | 21° /9° | 0 mm | 5 | |
| May 31 | Patchy rain possible | 22° /9° | 0 mm | 5 | |
| Next | |||||
Important Notice
Our weather forecast for Columbia 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 Columbia County forecast closer to your planned date for the most up-to-date weather information.
Change Month
Columbia County in May - FAQ
What are the expected maximum and minimum temperatures in Columbia County during May?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 8°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Columbia County during May?
Significant rainfall exceeding 176.1 mm is expected in Columbia County during May, occurring over more than 16 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Columbia County during May?
The average wind speed in Columbia County during May is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Columbia County
Explore the daily rainfall trends and prepare for Columbia Countys May weather 💧
Typically, Columbia County has 16 rainy days in May with a total of 176.1 mm of rainfall.
UV exposure in Columbia County during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
Top locations in Columbia County
Select a location for an accurate weather forecast
More Locations Quick links
More Columbia County weather pages
You are here
Where is Columbia County?Get accurate weather forecasts for Columbia County, located at latitude 43.627 and longitude -89.771. Stay updated with localized weather information tailored for Columbia County.
Found a mistake?
We appreciate your attention to details. Tell us here.