Weather in St Louis in April 2025
- April is usually the driest month of the year in St Louis
Average weather
Average temperature in St Louis in April
Going from a maximum of +84°F during the day to a minimum of +34°F during the night, the temperature in April averages around +72°F.
The average maximum temperature goes down 4% by the end of the month, compared with the beginning of the month, from +68°F to +66°F.
Is St Louis warm or cold in April?
St Louis is typically mild in April.
Maximum temperatures go up compared to the previous month from +57°F to +68°F. The minimum temperature also goes up from +37°F to +48°F.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how April is compared to other months in St Louis:
Climate in St Louis in April
| March | April | May | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +57°F | +68°F | +77°F | ||||
| Min. temperature | ||||||
| -6°F | +23°F | +37°F | ||||
| Max. temperature | ||||||
| +86°F | +91°F | +93°F | ||||
| Rainfall | ||||||
| 96 mm | 113 mm | 130 mm | ||||
| Wind | ||||||
| 3 m/s | 3 m/s | 2 m/s | ||||
| Humidity | ||||||
| 67% | 64% | 68% | ||||
| Air pressure | ||||||
| 1017 HPa | 1014 HPa | 1013 HPa | ||||
| Sunny days | ||||||
| 7 | 8 | 7 | ||||
| Cloudy days | ||||||
| 9 | 6 | 6 | ||||
| Rainy days | ||||||
| 13 | 15 | 17 | ||||
| Snowy days | ||||||
| 2 | 0 | 0 | ||||
April often has better weather than March. It’s getting warmer as April arrives. The average maximum temperature goes up from +57°F to +68°F during the day. Prepare for more rain. Average rainfall goes from 96 mm to 113 mm. It feels drier, as humidity decreases from 67% to 64%. The average wind speed doesn’t change much during April, staying around 3 m/s. The good news is there are likely to be more sunny days in April, from 7 to 8.
May brings much the same weather, it remains good.
Wind
The average wind speed is 3 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in St Louis is gradually decreasing during April, going from 7 m/s to 6 m/s over the course of the month.
Rain
How was the weather last April in St Louis?
Climate Change Over the Years
The climate in St Louis in April has not changed that much over the last 43 years.
The average temperature was the lowest in 1979 (+64°F) and the highest in 2012 (+71°F). The driest year was 2007 with only 666 mm of rainfall, and the wettest year was 2020 with 1575 mm.
FAQ
Is April a good time to visit St Louis?
Can you sunbathe in St Louis in April?
Is St Louis rainy in April?
Is it sunny in St Louis in April?
Other cities in USA
Monthly weather in St Louis
Source of the data
For this page, we’ve looked at the typical weather in St Louis, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.