Weather in Saint Louis: October
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Average day temperature: | 91.4°F |
| Average night temperature: | 81.8°F | |
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Sea water temperature: | 82.3°F |
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Number of sunny days: | 28 days |
| Day length: | 11.6 - 12.0 hours | |
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Number of rainy days: | 1 day |
| Precipitation totals: | 0.4 in. | |
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forecast
| Saint Louis |
temperature
| Saint Louis |
Air temperature in October, °F
The highest day temperature during October of 2025 was 96°F. At the same time the lowest night temperature was 80°F. Daily and nightly averages during October were 85.0°F and 81.4°F.
Sea water temperature in Saint Louis in October, °F
The average sea water temperature in October of 2025 was 84.0°F. The highest and lowest sea temperatures during the month were 85.8°F and 79.9°F.
Mostly all days in October are sunny but cloudy days are also possible.
Precipitation total in October, in.
Precipitation total value in Saint Louis in October is 0.2 in. Other months of the year show relatively similar values.
The average wind speed value in October is 12.4 mph It makes October one of the least windy months of the year.
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in October is: 10.2.
Best time for vacation in Saint Louis
Saint Louis on a weather map
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