Saint Louis County (Eureka)
May
Weather in Saint Louis County for May 2025
Your guide to Saint Louis County weather in May - trends and predictions
The forecast for the first days of May 2025 in Saint Louis County predicts temperatures to be around 23 °F, close to the historical average.
In general, the average temperature in Saint Louis County at the beginning of May is 21 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 24.3 °F by the end of May.
Saint Louis County in May brings notable rainfall, with an average of 20 rainy days and a total precipitation of 148.3 mm.
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Temperatures
Rain 🌧️
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11
Dry days
20
Rainy days
0
Snow days
24°/14°
Temperatures
17 km/h
Avg max wind
77 %
Avg humidity
Saint Louis County Weather May
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  21° | 2 15° | 3  18° | ||||
| 4  20° | 5  22° | 6 24° | 7 27° | 8 29° | 9 21° | 10 19° |
| 11 22° | 12 26° | 13 18° | 14 20° | 15 21° | 16 23° | 17  18° |
| 18  27° | 19 29° | 20  29° | 21 32° | 22  23° | 23 24° | 24  30° |
| 25 26° | 26  32° | 27 25° | 28 23° | 29 22° | 30 23° | 31 19° |
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Temperatures trend during May in Saint Louis County
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 | Patchy rain possible | 21° /16° | 2.1 mm | 4 | |
| May 2 | Patchy rain possible | 15° /12° | 0.2 mm | 3 | |
| May 3 | Overcast | 18° /8° | 0 mm | 3 | |
| May 4 | Partly cloudy | 20° /13° | 0 mm | 5 | |
| May 5 | Sunny | 22° /11° | 0 mm | 5 | |
| May 6 | Sunny | 24° /13° | 0 mm | 5 | |
| May 7 | Sunny | 27° /16° | 0 mm | 6 | |
| May 8 | Sunny | 29° /18° | 0 mm | 6 | |
| May 9 | Patchy rain possible | 21° /12° | 0.1 mm | 5 | |
| May 10 | Patchy rain possible | 19° /9° | 0.3 mm | 4 | |
| May 11 | Partly cloudy | 22° /10° | 0 mm | 6 | |
| May 12 | Partly cloudy | 26° /11° | 0 mm | 7 | |
| May 13 | Light rain shower | 18° /15° | 18.3 mm | 4 | |
| May 14 | Light rain shower | 20° /11° | 0.4 mm | 5 | |
| May 15 | Patchy rain possible | 21° /13° | 0.2 mm | 5 | |
| May 16 | Light rain shower | 23° /14° | 10.9 mm | 5 | |
| May 17 | Moderate rain | 18° /15° | 27.9 mm | 4 | |
| May 18 | Fog | 27° /14° | 0.1 mm | 6 | |
| May 19 | Sunny | 29° /17° | 0 mm | 7 | |
| May 20 | Thundery outbreaks possible | 29° /18° | 0.3 mm | 6 | |
| May 21 | Sunny | 32° /18° | 0.8 mm | 8 | |
| May 22 | Moderate or heavy rain with thunder | 23° /18° | 9.4 mm | 5 | |
| May 23 | Thundery outbreaks possible | 24° /15° | 0.6 mm | 5 | |
| May 24 | Patchy light rain with thunder | 30° /17° | 1.9 mm | 7 | |
| May 25 | Partly cloudy | 26° /14° | 0 mm | 7 | |
| May 26 | Patchy light drizzle | 32° /19° | 1.2 mm | 7 | |
| May 27 | Patchy rain possible | 25° /17° | 0.3 mm | 6 | |
| May 28 | Sunny | 23° /13° | 0 mm | 6 | |
| May 29 | Partly cloudy | 22° /12° | 0 mm | 6 | |
| May 30 | Sunny | 23° /11° | 0 mm | 6 | |
| May 31 | Light rain | 19° /14° | 22.3 mm | 4 | |
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Important Notice
Our weather forecast for Saint Louis 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 Saint Louis County forecast closer to your planned date for the most up-to-date weather information.
Saint Louis County in May - FAQ
What are the expected maximum and minimum temperatures in Saint Louis County during May?
Enjoy moderate daytime temperatures of up to 24° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Saint Louis County during May?
Significant rainfall exceeding 148.3 mm is expected in Saint Louis County during May, occurring over more than 20 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Saint Louis County during May?
The average wind speed in Saint Louis County during May is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in Saint Louis County
Explore the daily rainfall trends and prepare for Saint Louis Countys May weather 💧
UV exposure in Saint Louis County during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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Where is Saint Louis County?Get accurate weather forecasts for Saint Louis County, located at latitude 38.503 and longitude -90.628. Stay updated with localized weather information tailored for Saint Louis County.
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