Normal weather for Saint Louis in July
It's hot in July in Saint Louis with an average temperature of 32°C. Temperatures this month range from a low of 28°C to a high of 34°C. At night, you can expect temperatures between 20°C and 24°C.
In July, there is an average of 157 mm of precipitation, spread over 17 days. The wind speed is around 3 Bft, mostly coming from the South.
Saint Louis in July |
London | ||
|---|---|---|---|
 Average Temperature |
32°C | 23°C | |
 High Temp |
34°C | 27°C | |
| Low Temp |
28°C | 21°C | |
 Total Precipitation |
157 mm | 52 mm | |
| Rainy Days |
17 days | 9 days | |
Start of July
The month of July starts in Saint Louis with hot temperatures, averaging around 32°C during the day and nights close to 22°C. You can expect regular precipitation, but there’s also a chance for some sunny days in the first days of the month.
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. In the evening and morning, a T-shirt, light trousers or skirt, and a light jacket are recommended.
Mid-July
By mid-July, the average daytime temperature rises to around 33°C, with nights close to 23°C. During this part of the month, you can expect regular precipitation, but there’ll also be some sunny days. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
End of July
By the end of July, the average daytime temperature in Saint Louis will be around 32°C, with nights close to 22°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. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal for the day. In the evening and morning, a T-shirt, light trousers or skirt, and a light jacket are recommended.
Discover cheap trips to Saint Louis 
UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is July a good time to visit Saint Louis?
After some sun? Then July 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 July
With 40°C, Saint Louis hit the highest temperature in the last 10 years in July 2017. The lowest daytime temperature in this month was 21°C in 2016. The extreme night temperatures ranged from a low of 11°C to a high of 28°C.
Check out the climate of Saint Louis for all months and discover the best travel time
June
Plan your next holiday
Don’t miss the best holiday deals for Saint Louis and see what our partners have for you.
Daily Temperature in July in Saint Louis
This chart shows the average daily temperatures, both day and night, for each day in July 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 July in Saint Louis
The chart below shows the average daily precipitation in July 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 July, you can expect around 17 days of rain in Saint Louis.
Daily UV Index in July in Saint Louis
This chart shows the average daily UV index in July 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 July in Saint Louis Over the Years
This chart shows the average temperature in July in Saint Louis, measured in degrees Celsius, over the past years.
Total Precipitation in July in Saint Louis Over the Years
This chart shows the average precipitation in July 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 July for Saint Louis
Click on a specific day in July 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 July in Saint Louis
Have you been to Saint Louis in July?
Share your weather experience in July in Saint Louis.
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
