St. Louis, Missouri Weather:
Friday, July 17, 2026
Sunny with a Chance of Thunderstorms
Day 86°
Night 73°
Precipitation 88 %
Wind 7 mph
UV Index (0 - 11+) 5
Weather Forecast History
Last Year's Weather on This Day (July 17, 2025)
Stormy Weather

Day

84°

Night

72°

Wind

6 mph

UV Index

6

Precipitation

70 %