St. Louis (MO)
March
Weather in St. Louis, Missouri for March 2026
Your guide to St. Louis weather in March - trends and predictions
Wind Advisory - See hour by hour.
So far, March 2026 in St. Louis is slightly warmer than the historical average by 1.4 °F.
The forecast for the upcoming days in St. Louis predicts a temperature of 16.4 °F, which is slightly above the historical average.
In general, the average temperature in St. Louis at the beginning of March is 14.3 °F. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 16.6 °F by the end of March.
St. Louis experiences heavy rainfall in March, with over 20 rainy days and an average total precipitation 149.2 mm.
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Temperatures
Rain 🌧️
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7
Dry days
24
Rainy days
0
Snow days
14°/5°
Temperatures
23 km/h
Avg max wind
68 %
Avg humidity
St. Louis Weather March
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Temperatures trend during March in St. Louis
See the weather trend as well as the moving average line
March weather in St. Louis day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Mar. 1 |  Sunny | 12° /2° | 0.2 mm | 3 | |
| Mar. 2 | Sunny | 12° /2° | 8.8 mm | 3 | |
| Mar. 3 | Sunny | 14° /3° | 3.3 mm | 3 | |
| Mar. 4 |  Thundery outbreaks possible | 16° /6° | 9.8 mm | 4 | |
| Mar. 5 |  Overcast | 15° /6° | 8.6 mm | 4 | |
| Mar. 6 |  Partly cloudy | 17° /5° | 2.3 mm | 4 | |
| Mar. 7 |  Patchy rain possible | 14° /4° | 10.9 mm | 3 | |
| Mar. 8 | Overcast | 14° /4° | 7.1 mm | 3 | |
| Mar. 9 | Overcast | 13° /3° | 2 mm | 3 | |
| Mar. 10 | Sunny | 16° /6° | 0.4 mm | 3 | |
| Mar. 11 |  Moderate or heavy rain shower | 15° /4° | 8.9 mm | 3 | |
| Mar. 12 |  Heavy rain at times | 13° /2° | 2.3 mm | 4 | |
| Mar. 13 | Heavy rain at times | 15° /5° | 1.2 mm | 4 | |
| Mar. 14 | Overcast | 16° /6° | 1.6 mm | 4 | |
| Mar. 15 |  Moderate rain | 21° /3° | 5.8 mm | 0.7 | |
| Mar. 16 | Overcast | 3° /-5° | 0 mm | 0.7 | |
| Mar. 17 | Partly cloudy | 3° /-8° | 0 mm | 0 | |
| Mar. 18 | Partly cloudy | 15° /2° | 0 mm | 3 | |
| Mar. 19 | Partly cloudy | 21° /6° | 0 mm | 4 | |
| Mar. 20 | Sunny | 24° /12° | 0 mm | 5 | |
| Mar. 21 | Sunny | 27° /13° | 0 mm | 5 | |
| Mar. 22 | Sunny | 31° /16° | 0 mm | 6 | |
| Mar. 23 | Partly cloudy | 12° /8° | 0 mm | 4 | |
| Mar. 24 | Patchy rain possible | 9° /7° | 0.6 mm | 2 | |
| Mar. 25 | Patchy rain possible | 19° /8° | 1.8 mm | 3 | |
| Mar. 26 | Moderate rain | 25° /16° | 8.8 mm | 4 | |
| Mar. 27 | Patchy rain possible | 10° /6° | 0.2 mm | 2 | |
| Mar. 28 | Partly cloudy | 10° /1° | 0 mm | 3 | |
| Mar. 29 | Moderate rain at times | 18° /6° | 1 mm | 5 | |
| Mar. 30 | Overcast | 20° /8° | 9.3 mm | 4 | |
| Mar. 31 | Overcast | 14° /7° | 2.5 mm | 4 | |
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Important Notice
Our weather forecast for St. Louis in March is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the St. Louis forecast closer to your planned date for the most up-to-date weather information.
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St. Louis in March - FAQ
What are the expected maximum and minimum temperatures in St. Louis during March?
During March, expect a variety of temperatures with highs around 14° and lows near 5°, suitable for diverse activities and preferences.
How much rainfall should be expected in St. Louis during March?
Significant rainfall exceeding 149.2 mm is expected in St. Louis during March, occurring over more than 24 days. Preparing for wet conditions is recommended in your planning.
Will it snow in St. Louis in March 2026?
St. Louis typically sees 0.018 cm of snowfall during March.
What are the typical wind conditions in St. Louis during March?
The average wind speed in St. Louis during March is 23 km/h, suggesting breezy to windy conditions, depending on your activities.
March rainfall patterns in St. Louis
Explore the daily rainfall trends and prepare for St. Louiss March weather 💧
Typically, St. Louis has 24 rainy days in March with a total of 149.2 mm of rainfall.
UV exposure in St. Louis during March
Stay informed about UV levels for safe outdoor activities throughout the month of March ☀️
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