Weather in Saint Charles in March
Saint Charles, United States averages a high of 12.9°C (55.2°F) and low of 2.6°C (36.7°F) in March, with 10 rain days and 8.1 hours of daily sunshine. Travel score: 63/100 (Good). The best time to visit Saint Charles is September.
High
13°C55°F
Low
3°C37°F
🌧️
10
rain days
☀️
8.1
hrs/day sunshine
💧
67%
humidity
63— Good
March in Saint Charles is cool and occasionally wet — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in Saint Charles?
How much does it rain in Saint Charles in March?
Saint Charles receives an average of 100.1mm of rainfall across 10 rainy days in March. The annual total is 1062.1mm.
What should I pack for Saint Charles in March?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Warm coat
Cool weather with highs around 13°C
🧶
Sweaters and warm layers
Layer up for comfort
🧤
Warm gloves
Cold nights around 3°C
🧣
Warm scarf
Protect against cold winds
Traveling to United States in March?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31