We track 1 splash pad in Lake St. Louis. Every one of them is free.
When to go
Peak summer highs in Lake St. Louis average 87°F — warm enough for a splash pad through most of the season without being punishing at midday.
Month
Average high
June
83°F
July
87°F
August
86°F
What to expect
The things that decide a trip with small children — a toilet, some shade, somewhere to sit — are exactly what listings usually leave out. Across the 1 pads in Lake St. Louis:
A castle-themed, wheelchair-accessible destination playground whose small splash pad is scaled for toddlers rather than cannonballing big kids. The combination draws families from across St. Charles County.