St. Louis weather in March
Temperature, rain and sunshine in March: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in March
Fair
Best time to visit: April – May, September – October
What is the weather like in St. Louis in March?
In March, St. Louis is cool: daytime highs average 13 °C, and nights cool down to about 3 °C. Expect around 6 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 105 mm in total. All in all, March is a so-so month for a holiday in St. Louis.
March compared
How the weather changes from February to April. Tap a month to open it.
| FebruaryFeb | MarchMar | AprilApr | |
|---|---|---|---|
| Score | 28 | 50 | 77 |
| Day | 7° | 13° | 19° |
| Night | −3° | 3° | 9° |
| Sun | 5 h | 6 h | 7 h |
| Rain days | 8 | 11 | 11 |
More details for March
- Daylight
- 11 h 53 min07:14 – 19:07
- UV index
- 6 · highclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 19 km/haverage daily peakAll months
- Cloud cover
- 61 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Snow days
- 1 day1 cm or more of fresh snowAll months
- Time zone
- UTC−5America/Chicago
How the score comes together
- Temperatureweight 50 %53 %
- Sunshineweight 20 %43 %
- Few rainy daysweight 30 %50 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in March
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
St. Louis in March: quick answers
Is St. Louis hot in March?
No. In March, St. Louis is cool: daytime highs average 13 °C and nights drop to about 3 °C.
Does it rain much in St. Louis in March?
Rain is frequent, with about 11 rainy days and 105 mm in total.
St. Louis month by month
The whole year in St. LouisAll destinations: USAWhere to go in March
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences