Missouri (St. Louis)
May
Weather in Missouri for May 2026
Your guide to Missouri weather in May - trends and predictions
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Until now, May 2026 in Missouri is slightly cooler than the historical average by -1.8 °F.
The forecast for the upcoming days in Missouri predicts a temperature of 25.2 °F, which is slightly above the historical average.
In general, the average temperature in Missouri at the beginning of May is 20.4 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 27 °F by the end of May.
Missouri experiences heavy rainfall in May, with over 20 rainy days and an average total precipitation 221.7 mm.
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Temperatures
Rain 🌧️
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3
Dry days
28
Rainy days
0
Snow days
23°/14°
Temperatures
19 km/h
Avg max wind
75 %
Avg humidity
Missouri Weather May
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What’s the Weather Like in Missouri This May?
Discover the average temperatures and weather trends across Missouri’s cities this May.
Temperatures trend during May in Missouri
See the weather trend as well as the moving average line
May weather in Missouri day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Sunny | 21° /11° | 6.5 mm | 6 | |
| May 2 |  Moderate rain at times | 19° /11° | 4.5 mm | 5 | |
| May 3 | Sunny | 21° /11° | 17.7 mm | 6 | |
| May 4 | Moderate or heavy rain shower | 20° /10° | 9.4 mm | 5 | |
| May 5 | Moderate or heavy rain shower | 19° /10° | 16.4 mm | 4 | |
| May 6 | Moderate rain at times | 19° /10° | 2.5 mm | 5 | |
| May 7 |  Overcast | 24° /12° | 3.4 mm | 7 | |
| May 8 |  Patchy rain possible | 22° /11° | 5.1 mm | 6 | |
| May 9 | Sunny | 24° /12° | 3.4 mm | 6 | |
| May 10 | Overcast | 23° /11° | 0.3 mm | 6 | |
| May 11 | Patchy rain possible | 24° /12° | 0.8 mm | 6 | |
| May 12 |  Partly cloudy | 24° /14° | 5 mm | 7 | |
| May 13 | Partly cloudy | 24° /14° | 3 mm | 6 | |
| May 14 | Sunny | 22° /10° | 0 mm | 8.4 | |
| May 15 | Patchy rain possible | 29° /13° | 1.6 mm | 0.3 | |
| May 16 | Sunny | 31° /19° | 0 mm | 6 | |
| May 17 | Sunny | 30° /19° | 0 mm | 6 | |
| May 18 | Patchy rain possible | 28° /19° | 3.8 mm | 5 | |
| May 19 | Patchy rain possible | 21° /16° | 0.3 mm | 4 | |
| May 20 | Patchy rain possible | 18° /15° | 4.4 mm | 4 | |
| May 21 |  Moderate rain | 25° /14° | 18.9 mm | 4 | |
| May 22 | Moderate rain | 15° /13° | 7.8 mm | 4 | |
| May 23 | Sunny | 21° /10° | 0 mm | 5 | |
| May 24 | Sunny | 24° /11° | 0 mm | 5 | |
| May 25 | Partly cloudy | 27° /16° | 0.1 mm | 6 | |
| May 26 | Patchy rain possible | 31° /21° | 0.4 mm | 6 | |
| May 27 | Sunny | 31° /21° | 0 mm | 7 | |
| May 28 | Overcast | 24° /13° | 2 mm | 6 | |
| May 29 | Partly cloudy | 23° /13° | 2.3 mm | 6 | |
| May 30 | Sunny | 26° /14° | 0 mm | 7 | |
| May 31 | Partly cloudy | 27° /16° | 1.6 mm | 6 | |
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Important Notice
Our weather forecast for Missouri 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 Missouri forecast closer to your planned date for the most up-to-date weather information.
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Missouri in May - FAQ
What are the expected maximum and minimum temperatures in Missouri 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 Missouri during May?
Significant rainfall exceeding 221.7 mm is expected in Missouri during May, occurring over more than 28 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Missouri during May?
The average wind speed in Missouri during May is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Missouri
Explore the daily rainfall trends and prepare for Missouris May weather 💧
Typically, Missouri has 28 rainy days in May with a total of 221.7 mm of rainfall.
UV exposure in Missouri during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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Where is Missouri?Get accurate weather forecasts for Missouri, located at latitude 38.627 and longitude -90.198. Stay updated with localized weather information tailored for Missouri.
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