Weather in St. Louis, Missouri for October 2025
Until now, October 2025 in St. Louis has been nearly identical to the historical average, with a temperature of 23.4 °F (showing only a slight deviation of 0.1 °F).
The forecast for the upcoming days in St. Louis predicts a temperature of 14.9 °F, which is slightly above the historical average.
In general, the average temperature in St. Louis at the beginning of October is 26 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 16.9 °F by the end of October.
St. Louis in October brings notable rainfall, with an average of 16 rainy days and a total precipitation of 75.9 mm.
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St. Louis Weather October
Temperatures trend during October in St. Louis
October weather in St. Louis day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Oct. 1 |  Sunny | 27° /14° | 0.1 mm | 6 | |
| Oct. 2 | Sunny | 27° /14° | 2.3 mm | 6 | |
| Oct. 3 |  Cloudy | 27° /14° | 0.7 mm | 6 | |
| Oct. 4 | Sunny | 27° /14° | 0.2 mm | 7 | |
| Oct. 5 |  Patchy rain possible | 27° /14° | 7.1 mm | 6 | |
| Oct. 6 | Cloudy | 26° /15° | 1.1 mm | 6 | |
| Oct. 7 | Sunny | 21° /10° | 0.3 mm | 5 | |
| Oct. 8 | Sunny | 23° /8° | 0 mm | 6 | |
| Oct. 9 | Sunny | 24° /10° | 0 mm | 6 | |
| Oct. 10 | Sunny | 26° /11° | 0 mm | 7 | |
| Oct. 11 |  Moderate or heavy rain shower | 27° /14° | 2 mm | 6 | |
| Oct. 12 | Cloudy | 26° /13° | 1.1 mm | 6 | |
| Oct. 13 |  Overcast | 24° /13° | 1.7 mm | 5 | |
| Oct. 14 | Sunny | 21° /11° | 3.6 mm | 5 | |
| Oct. 15 |  Partly cloudy | 20° /10° | 3.8 mm | 5 | |
| Oct. 16 | Sunny | 21° /9° | 0 mm | 6 | |
| Oct. 17 | Sunny | 20° /7° | 0 mm | 5 | |
| Oct. 18 | Sunny | 22° /7° | 9.3 mm | 5 | |
| Oct. 19 | Sunny | 20° /8° | 0.8 mm | 5 | |
| Oct. 20 | Sunny | 23° /7° | 0.5 mm | 6 | |
| Oct. 21 | Sunny | 23° /10° | 0 mm | 6 | |
| Oct. 22 | Sunny | 22° /9° | 0.6 mm | 6 | |
| Oct. 23 | Moderate or heavy rain shower | 22° /11° | 2.7 mm | 5 | |
| Oct. 24 | Patchy rain possible | 23° /11° | 5.4 mm | 5 | |
| Oct. 25 | Overcast | 21° /11° | 10.1 mm | 5 | |
| Oct. 26 | Sunny | 19° /9° | 6 mm | 5 | |
| Oct. 27 | Overcast | 19° /9° | 1.1 mm | 4 | |
| Oct. 28 | Moderate or heavy rain shower | 17° /7° | 5.6 mm | 4 | |
| Oct. 29 |  Moderate rain | 13° /7° | 11.2 mm | 0.1 | |
| Oct. 30 | Partly cloudy | 11° /6° | 0 mm | 0.8 | |
| Oct. 31 | Partly cloudy | 18° /7° | 0 mm | 0.7 | |
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St. Louis in October - FAQ
October rainfall patterns in St. Louis
UV exposure in St. Louis during October
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Where is St. Louis?Get accurate weather forecasts for St. Louis, located at latitude 38.627 and longitude -90.198. Stay updated with localized weather information tailored for St. Louis.