The highest day temperature in March 2026 was 96°F. The lowest night temperature was 15°F. The average values for day and night temperatures during March were 63.8°F и 46.3°F respectivly.

You can expect various weather conditions during March. Be ready for sunny, cloudy or even gloomy days.

Precipitation total in March for St. Louis is 2.7 in.

The average wind speed in March is 10.0 mph. It makes March one of the most windy months of the year for St. Louis.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for St. Louis in March is 6.4 hours.