Weather in St Louis in March 2025
Average weather
Average temperature in St Louis in March
Going from a maximum of +73°F during the day to a minimum of +21°F during the night, the temperature in March averages around +57°F.
The average maximum temperature goes up 17% by the end of the month, compared with the beginning of the month, from +64°F to +73°F.
Is St Louis warm or cold in March?
St Louis is typically mild in March.
Maximum temperatures go up compared to the previous month from +45°F to +57°F. The minimum temperature also goes up from +28°F to +37°F.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how March is compared to other months in St Louis:
Climate in St Louis in March
| February | March | April | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +45°F | +57°F | +68°F | ||||
| Min. temperature | ||||||
| -11°F | -6°F | +23°F | ||||
| Max. temperature | ||||||
| +77°F | +86°F | +91°F | ||||
| Rainfall | ||||||
| 51 mm | 96 mm | 113 mm | ||||
| Wind | ||||||
| 3 m/s | 3 m/s | 3 m/s | ||||
| Humidity | ||||||
| 71% | 67% | 64% | ||||
| Air pressure | ||||||
| 1019 HPa | 1017 HPa | 1014 HPa | ||||
| Sunny days | ||||||
| 6 | 7 | 8 | ||||
| Cloudy days | ||||||
| 10 | 9 | 6 | ||||
| Rainy days | ||||||
| 6 | 13 | 15 | ||||
| Snowy days | ||||||
| 6 | 2 | 0 | ||||
March weather is still as ok as in February. It’s getting warmer as March arrives. The average maximum temperature goes up from +45°F to +57°F during the day. Prepare for more rain. Average rainfall goes from 51 mm to 96 mm. It feels drier, as humidity decreases from 71% to 67%. The average wind speed doesn’t change much during March, staying around 3 m/s. The good news is there are likely to be more sunny days in March, from 6 to 7.
But maybe it is worth considering traveling in April as the weather gets better.
Wind
The average wind speed is 4 m/s getting up to 8 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 increasing during March, going from 2 m/s to 5 m/s over the course of the month.
Rain
Snow
Here’s how March is compared with other months in the amount of snow, total mm:
How was the weather last March in St Louis?
Climate Change Over the Years
The climate in St Louis in March 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 March a good time to visit St Louis?
Can you sunbathe in St Louis in March?
Is St Louis rainy in March?
Is it sunny in St Louis in March?
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.