Saint Louis County (Eureka)
October
Weather in Saint Louis County, Missouri for October 2027
Your guide to Saint Louis County weather in October - trends and predictions
In general, the average temperature in Saint Louis County at the beginning of October is 26.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 20 °C by the end of October.
With an average of 5 rainy days, Saint Louis County experiences minimal rainfall in October.
Is October a good time to visit Saint Louis County? check out the best time to travel to Saint Louis County page.
✨ Is October a good time to visit Saint Louis County? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
26
Dry days
5
Rainy days
0
Snow days
23°/12°
Temperatures
15 km/h
Avg max wind
60 %
Avg humidity
Saint Louis County Weather October
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Temperatures trend during October in Saint Louis County
See the weather trend as well as the moving average line
October weather in Saint Louis County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Oct. 1 |  Patchy rain possible | 28° /18° | 2.4 mm | 4 | |
| Oct. 2 | Patchy rain possible | 25° /13° | 1.5 mm | 5.8 | |
| Oct. 3 |  Sunny | 26° /13° | 0 mm | 5.7 | |
| Oct. 4 | Sunny | 29° /15° | 0 mm | 5.7 | |
| Oct. 5 | Sunny | 28° /14° | 0 mm | 5.6 | |
| Oct. 6 | Sunny | 27° /15° | 0 mm | 5.5 | |
| Oct. 7 | Sunny | 23° /12° | 0 mm | 5 | |
| Oct. 8 | Sunny | 24° /10° | 0 mm | 5 | |
| Oct. 9 | Sunny | 26° /11° | 0 mm | 5.2 | |
| Oct. 10 | Sunny | 25° /11° | 0.8 mm | 5 | |
| Oct. 11 | Sunny | 28° /13° | 0 mm | 5 | |
| Oct. 12 |  Partly cloudy | 29° /16° | 0 mm | 5 | |
| Oct. 13 |  Thundery outbreaks possible | 29° /17° | 0 mm | 4.9 | |
| Oct. 14 |  Light rain | 23° /14° | 6.1 mm | 4 | |
| Oct. 15 | Light rain | 23° /13° | 7 mm | 4 | |
| Oct. 16 | Sunny | 20° /9° | 0.5 mm | 4.6 | |
| Oct. 17 | Sunny | 19° /8° | 0 mm | 4.5 | |
| Oct. 18 |  Moderate rain | 21° /8° | 17.7 mm | 4.5 | |
| Oct. 19 | Light rain | 21° /7° | 2.8 mm | 4 | |
| Oct. 20 | Sunny | 23° /8° | 0 mm | 4.3 | |
| Oct. 21 | Sunny | 22° /10° | 0 mm | 4.2 | |
| Oct. 22 | Sunny | 23° /9° | 0 mm | 4.2 | |
| Oct. 23 | Sunny | 20° /11° | 0 mm | 4 | |
| Oct. 24 |  Overcast | 20° /9° | 0 mm | 3 | |
| Oct. 25 | Overcast | 21° /12° | 0 mm | 3 | |
| Oct. 26 | Moderate rain | 19° /12° | 15.1 mm | 3 | |
| Oct. 27 | Overcast | 17° /10° | 0 mm | 3 | |
| Oct. 28 | Moderate rain | 21° /11° | 11.5 mm | 3 | |
| Oct. 29 |  Heavy rain | 22° /14° | 31.3 mm | 3.7 | |
| Oct. 30 | Overcast | 20° /13° | 0 mm | 3 | |
| Oct. 31 |  Moderate or heavy rain shower | 20° /10° | 8.5 mm | 3 | |
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Important Notice
Our weather forecast for Saint Louis County in October 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.
Change Month
Saint Louis County in October - FAQ
What are the expected maximum and minimum temperatures in Saint Louis County during October?
Enjoy moderate daytime temperatures of up to 23° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Saint Louis County during October?
Significant rainfall exceeding 136 mm is expected in Saint Louis County during October, occurring over more than 5 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Saint Louis County during October?
The average wind speed in Saint Louis County during October is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
October rainfall patterns in Saint Louis County
Explore the daily rainfall trends and prepare for Saint Louis Countys October weather 💧
Typically, Saint Louis County has 5 rainy days in October with a total of 136 mm of rainfall.
UV exposure in Saint Louis County during October
Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
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