St. Louis Weather in May
May in St. Louis typically sees daytime highs of 25°C (77°F) and nighttime lows of 14°C (57°F). Rainfall is also possible this month, so it's worth packing an umbrella.
Rainfall in St. Louis in May
You can expect rain on roughly 15 days based on historical data, averaging 120 mm (4.7 in) for the month. This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.
Temperature in St. Louis in May
May in St. Louis brings typical temperatures with highs around 25°C (77°F) and lows of 14°C (57°F). Overall, the month follows a fairly predictable daily temperature pattern. With lows of 14°C (57°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.
Sunshine in St. Louis in May
The days are predominantly sunny, with an estimated total of around 269 hours of sunshine. 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.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our St. Louis's climate page.
St. Louis Temperature in May
Min Temperature
14°C (57°F)
Max Temperature
25°C (77°F)
Chance of Rain
50%
Precipitation
120 mm (4.7 in)
Rainy days
15 days
Humidity
65%
Sunshine
269 hours
Percentage Sunshine
60%
Best Places in the United States of America in May
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in May →
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What to Wear in St. Louis in May
Pleasant temperatures in May mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in St. Louis in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our St. Louis's climate page.
Temperature Rainfall Sunshine Humidity
See the full St. Louis climate overview or explore weather in the United States of America.
