Normal weather for Saint Louis in October
It's pleasantly warm in October in Saint Louis with an average temperature of 21°C. Temperatures this month range from a low of 12°C to a high of 29°C. At night, you can expect temperatures between 4°C and 18°C.
In October, there is an average of 131 mm of precipitation, spread over 15 days. The wind speed is around 4 Bft, mostly coming from the Southwest.
Saint Louis in October |
London | ||
|---|---|---|---|
 Average Temperature |
21°C | 15°C | |
 High Temp |
29°C | 17°C | |
| Low Temp |
12°C | 13°C | |
 Total Precipitation |
131 mm | 115 mm | |
| Rainy Days |
15 days | 14 days | |
Start of October
The month of October starts in Saint Louis with warm temperatures, averaging around 26°C during the day and nights close to 14°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry.
Since temperatures can differ between day and night, it’s a good idea to dress in layers. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal for the day. For the evening and morning, a shirt, maybe a light cardigan, and light trousers will do.
Mid-October
By mid-October, the average daytime temperature drops to around 20°C, with nights close to 9°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
Temperatures vary between day and night, so it’s smart to wear layers. During the day, a shirt, maybe a light cardigan, and light trousers will do. In the evening and morning, we recommend a warm coat, jumper or cardigan, and long trousers.
End of October
By the end of October, the average daytime temperature in Saint Louis will be around 18°C, with nights close to 8°C. There’s regular precipitation, but with a bit of luck, you’ll also get some dry and sunny days.
As it gets cooler in the evening, it’s best to wear layers. During the day, a shirt, maybe a light cardigan, and light trousers will do. In the evening and morning, we recommend a warm coat, jumper or cardigan, and long trousers.
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UV index
The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Is October a good time to visit Saint Louis?
After some sun? Then October isn’t the best time to be in Saint Louis. The temperature is pleasant, but there’s too much chance of rain this month.
Temperature records for Saint Louis in October
With 34°C, Saint Louis hit the highest temperature in the last 10 years in October 2019. The lowest daytime temperature in this month was 3°C in 2019. The extreme night temperatures ranged from a low of -3°C to a high of 23°C.
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Daily Temperature in October in Saint Louis
This chart shows the average daily temperatures, both day and night, for each day in October in Saint Louis, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in October in Saint Louis
The chart below shows the average daily precipitation in October for Saint Louis, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for October, you can expect around 15 days of rain in Saint Louis.
Daily UV Index in October in Saint Louis
This chart shows the average daily UV index in October in Saint Louis, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in October in Saint Louis Over the Years
This chart shows the average temperature in October in Saint Louis, measured in degrees Celsius, over the past years.
Total Precipitation in October in Saint Louis Over the Years
This chart shows the average precipitation in October in Saint Louis, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in October for Saint Louis
Click on a specific day in October for detailed info on the typical weather on that day in Saint Louis. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in October in Saint Louis
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Average Weather in Saint Louis by Month
Click on a month below to see detailed weather info for Saint Louis. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Saint Louis for all months at once
