With a population of around 5,600, Weldon Spring sits in Missouri, United States. The city operates in the Central Time Zone.
Recent weather here gives a sense of typical conditions: in 2025, Weldon Spring recorded a mean annual temperature of 57°F, ranging from -2°F lows in February to 96°F highs in August, with about 46 inches of precipitation across the year.
View historical weather for Weldon Spring · More cities in Missouri