Decatur
May
Weather in Decatur for May 2025
Your guide to Decatur weather in May - trends and predictions
The forecast for the next days in Decatur predicts temperatures to be around 20 °F, close to the historical average.
In general, the average temperature in Decatur at the beginning of May is 18 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 22.1 °F by the end of May.
Decatur in May brings notable rainfall, with an average of 17 rainy days and a total precipitation of 131.6 mm.
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Temperatures
Rain 🌧️
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14
Dry days
17
Rainy days
0
Snow days
23°/14°
Temperatures
23 km/h
Avg max wind
75 %
Avg humidity
Decatur Weather May
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  23° | 2  18° | 3  15° | ||||
| 4  16° | 5  13° | 6  20° | 7 21° | 8 23° | 9 24° | 10 24° |
| 11 18° | 12 18° | 13  23° | 14 22° | 15 19° | 16  18° | 17 23° |
| 18  26° | 19 28° | 20  28° | 21 29° | 22 24° | 23 24° | 24  27° |
| 25 24° | 26 28° | 27 22° | 28 20° | 29 19° | 30 22° | 31 20° |
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Temperatures trend during May in Decatur
See the weather trend as well as the moving average line
May weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 | Heavy rain | 23° /15° | 27.4 mm | 1.4 | |
| May 2 | Moderate rain | 18° /10° | 5.4 mm | 1.7 | |
| May 3 | Overcast | 15° /8° | 0 mm | 1.8 | |
| May 4 | Patchy rain possible | 16° /7° | 0.6 mm | 2 | |
| May 5 | Cloudy | 13° /7° | 0.1 mm | 0 | |
| May 6 | Sunny | 20° /8° | 0 mm | 4 | |
| May 7 | Sunny | 21° /11° | 0 mm | 5 | |
| May 8 | Sunny | 23° /13° | 0 mm | 5 | |
| May 9 | Sunny | 24° /13° | 0 mm | 5 | |
| May 10 | Sunny | 24° /14° | 0 mm | 5 | |
| May 11 | Patchy rain possible | 18° /16° | 0.5 mm | 4 | |
| May 12 | Patchy rain possible | 18° /15° | 0.5 mm | 4 | |
| May 13 | Partly cloudy | 23° /13° | 0 mm | 5 | |
| May 14 | Patchy rain possible | 22° /14° | 1.1 mm | 4 | |
| May 15 | Patchy rain possible | 19° /14° | 1.1 mm | 4 | |
| May 16 | Light rain | 18° /14° | 5.3 mm | 4 | |
| May 17 | Light rain shower | 23° /16° | 8.2 mm | 5 | |
| May 18 | Fog | 26° /15° | 0 mm | 6 | |
| May 19 | Cloudy | 28° /18° | 0 mm | 6 | |
| May 20 | Thundery outbreaks possible | 28° /18° | 1 mm | 6 | |
| May 21 | Thundery outbreaks possible | 29° /19° | 1.5 mm | 6 | |
| May 22 | Light rain shower | 24° /18° | 7.6 mm | 5 | |
| May 23 | Patchy rain possible | 24° /13° | 0.1 mm | 5 | |
| May 24 | Moderate or heavy rain with thunder | 27° /16° | 8.4 mm | 6 | |
| May 25 | Sunny | 24° /14° | 0 mm | 6 | |
| May 26 | Moderate or heavy rain with thunder | 28° /16° | 19.9 mm | 6 | |
| May 27 | Patchy rain possible | 22° /14° | 2 mm | 5 | |
| May 28 | Patchy rain possible | 20° /13° | 0.3 mm | 5 | |
| May 29 | Patchy rain possible | 19° /10° | 0.1 mm | 4 | |
| May 30 | Partly cloudy | 22° /10° | 0 mm | 6 | |
| May 31 | Overcast | 20° /12° | 0.3 mm | 5 | |
| Next | |||||
Important Notice
Our weather forecast for Decatur 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 Decatur forecast closer to your planned date for the most up-to-date weather information.
Decatur in May - FAQ
What are the expected maximum and minimum temperatures in Decatur during May?
Enjoy moderate daytime temperatures of up to 23° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Decatur during May?
Significant rainfall exceeding 131.6 mm is expected in Decatur during May, occurring over more than 17 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Decatur during May?
The average wind speed in Decatur during May is 23 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Decatur
Explore the daily rainfall trends and prepare for Decaturs May weather 💧
UV exposure in Decatur during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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