St. Louis weather in October
Temperature, rain and sunshine in October: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in October
Excellent
Best time to visit: April – May, September – October
What is the weather like in St. Louis in October?
In October, St. Louis is mild: daytime highs average 20 °C, and nights cool down to about 11 °C. Expect around 6 hours of sunshine a day. Rain falls on about 8 days, adding up to 89 mm. All in all, October is an excellent month for a holiday in St. Louis.
October compared
How the weather changes from September to November. Tap a month to open it.
| SeptemberSep | OctoberOct | NovemberNov | |
|---|---|---|---|
| Score | 86 | 82 | 51 |
| Day | 27° | 20° | 13° |
| Night | 17° | 11° | 4° |
| Sun | 7 h | 6 h | 5 h |
| Rain days | 7 | 8 | 8 |
More details for October
- Daylight
- 11 h 16 min07:09 – 18:24
- UV index
- 4 · moderateclear sky, noon (estimate)All months
- Muggy days
- 1 daydew point 18 °C or moreAll months
- Wind
- 17 km/haverage daily peakAll months
- Cloud cover
- 47 %on averageAll months
- Hot days
- 1 day30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC−5America/Chicago
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %50 %
- Few rainy daysweight 30 %72 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in October
- Sunscreen
- A jumper for the evenings
St. Louis in October: quick answers
Is St. Louis hot in October?
No. In October, St. Louis is mild: daytime highs average 20 °C and nights drop to about 11 °C.
Does it rain much in St. Louis in October?
Rain falls on about 8 days, adding up to 89 mm.
St. Louis month by month
The whole year in St. LouisAll destinations: USAWhere to go in October
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences