Lake St. Louis, MO Current Weather and Forecast

Lake St. Louis, MO Weather Forecast

10:24 AM CDT Thu Jun 20 2024

REST OF TODAY - Mostly sunny. Highs in the lower 90s. South winds around 5 mph.

TONIGHT - Mostly clear. Lows in the lower 70s. South winds around 5 mph.

FRIDAY - Sunny. Highs in the mid 90s. Southwest winds around 5 mph.

FRIDAY NIGHT - Mostly clear. Lows in the lower 70s. South winds around 5 mph.

SATURDAY - Mostly sunny. Hot with highs in the upper 90s. Southwest winds 5 to 10 mph.

SATURDAY NIGHT AND SUNDAY - Partly cloudy. A chance of showers and thunderstorms. Lows in the mid 70s. Highs in the mid 90s. Chance of rain 40 percent. Heat index values up to 105.

SUNDAY NIGHT THROUGH MONDAY NIGHT...Mostly clear. Hot. Lows in the lower 70s. Highs in the mid 90s. Heat index values up to 100.

TUESDAY - Sunny. A slight chance of showers and thunderstorms in the afternoon. Hot with highs in the upper 90s. Chance of rain 20 percent. Heat index values up to 110.

TUESDAY NIGHT AND WEDNESDAY - Partly cloudy. A chance of showers and thunderstorms. Hot. Lows in the mid 70s. Highs in the mid 90s. Chance of rain 40 percent. Heat index values up to 105.

National Weather Service Saint Louis MO