Saint Louis County (Eureka)
March
Weather in Saint Louis County, Missouri for March 2026
Your guide to Saint Louis County weather in March - trends and predictions
So far, March 2026 in Saint Louis County is slightly warmer than the historical average by 1.6 °F.
The forecast for the next days in Saint Louis County predicts a temperature of 19.6 °F, which is cooler than the historical average.
In general, the average temperature in Saint Louis County at the beginning of March is 12.3 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 21.1 °F by the end of March.
Saint Louis County experiences moderate rainfall in March, with an average of 8 rainy days and a total precipitation of 113.6 mm.
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Temperatures
Rain 🌧️
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23
Dry days
8
Rainy days
0
Snow days
15°/6°
Temperatures
21 km/h
Avg max wind
60 %
Avg humidity
Saint Louis County Weather March
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Temperatures trend during March in Saint Louis County
See the weather trend as well as the moving average line
March weather in Saint Louis County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Mar. 1 |  Cloudy | 11° /0° | 0 mm | 2 | |
| Mar. 2 |  Partly cloudy | 6° /0° | 28.1 mm | 2 | |
| Mar. 3 |  Overcast | 11° /1° | 0 mm | 1 | |
| Mar. 4 |  Heavy rain | 16° /7° | 41.7 mm | 2 | |
| Mar. 5 |  Moderate or heavy rain shower | 12° /5° | 16.9 mm | 2 | |
| Mar. 6 | Cloudy | 16° /6° | 0 mm | 3 | |
| Mar. 7 | Overcast | 14° /5° | 0 mm | 3 | |
| Mar. 8 | Overcast | 12° /2° | 0 mm | 3 | |
| Mar. 9 | Overcast | 17° /6° | 0 mm | 3 | |
| Mar. 10 |  Sunny | 24° /10° | 0 mm | 4 | |
| Mar. 11 | Sunny | 21° /9° | 15.6 mm | 4 | |
| Mar. 12 |  Fog | 18° /3° | 0 mm | 5 | |
| Mar. 13 | Overcast | 18° /10° | 0 mm | 4 | |
| Mar. 14 | Overcast | 20° /9° | 0 mm | 5 | |
| Mar. 15 | Cloudy | 18° /8° | 4.4 mm | 3 | |
| Mar. 16 | Overcast | 5° /-2° | 0 mm | 3 | |
| Mar. 17 | Overcast | 11° /-1° | 0 mm | 4 | |
| Mar. 18 | Sunny | 15° /3° | 0 mm | 4 | |
| Mar. 19 | Sunny | 21° /4° | 0 mm | 5 | |
| Mar. 20 | Overcast | 17° /6° | 0 mm | 4 | |
| Mar. 21 | Partly cloudy | 17° /5° | 0 mm | 4 | |
| Mar. 22 |  Patchy rain possible | 21° /6° | 0.4 mm | 4 | |
| Mar. 23 | Overcast | 13° /4° | 8.6 mm | 4 | |
| Mar. 24 | Overcast | 15° /4° | 0 mm | 4 | |
| Mar. 25 | Light rain shower | 19° /10° | 11.3 mm | 5 | |
| Mar. 26 | Patchy rain possible | 20° /9° | 0.2 mm | 4 | |
| Mar. 27 | Overcast | 18° /6° | 1.8 mm | 4 | |
| Mar. 28 | Sunny | 15° /0° | 0 mm | 1.7 | |
| Mar. 29 | Partly cloudy | 18° /9° | 0 mm | 1.3 | |
| Mar. 30 | Overcast | 28° /14° | 0 mm | 1.5 | |
| Mar. 31 | Patchy rain possible | 30° /17° | 1.1 mm | 1.5 | |
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Important Notice
Our weather forecast for Saint Louis County 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 Saint Louis County forecast closer to your planned date for the most up-to-date weather information.
Change Month
Saint Louis County in March - FAQ
What are the expected maximum and minimum temperatures in Saint Louis County during March?
During March, expect a variety of temperatures with highs around 15° and lows near 6°, suitable for diverse activities and preferences.
How much rainfall should be expected in Saint Louis County during March?
Significant rainfall exceeding 113.6 mm is expected in Saint Louis County during March, occurring over more than 8 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Saint Louis County during March?
The average wind speed in Saint Louis County during March is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
March rainfall patterns in Saint Louis County
Explore the daily rainfall trends and prepare for Saint Louis Countys March weather 💧
Typically, Saint Louis County has 8 rainy days in March with a total of 113.6 mm of rainfall.
UV exposure in Saint Louis County during March
Stay informed about UV levels for safe outdoor activities throughout the month of March ☀️
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Where is Saint Louis County?Get accurate weather forecasts for Saint Louis County, located at latitude 38.503 and longitude -90.628. Stay updated with localized weather information tailored for Saint Louis County.
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