St. Louis Weather in March

With daytime temperatures of 14°C (57°F) and nighttime lows of 3°C (37°F), March in St. Louis brings moderate temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 89 mm (3.5 in) falls on average.

Rainfall in St. Louis in March

Rain is expected on roughly 12 days, totalling around 89 mm (3.5 in) for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in St. Louis in March

In March, St. Louis sees moderate temperatures, with highs of 14°C (57°F). Nights drop to around 3°C (37°F). The difference between afternoon and evening temperatures is usually noticeable. With overnight lows of 3°C (37°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in St. Louis in March

The days are predominantly sunny, with an estimated total of around 199 hours of sunshine. Despite the cool temperatures, these sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

Should you favor a climate that's both dry and comfortably warm, October typically offers the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.