10-Day Weather Forecast - Saint Louis, MO

Mostly cloudy in the morning then partly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Southwest winds 5 to 10 mph. Chance of rain 20 percent.

Mostly cloudy. A slight chance of showers and thunderstorms in the evening then a chance of showers and thunderstorms after midnight. Lows around 70. South winds 5 to 10 mph. Chance of rain 40 percent.

Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the morning then showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 80s. Southeast winds 5 to 10 mph. Chance of rain 70 percent.

A chance of thunderstorms. A chance of showers in the evening then showers after midnight. Lows around 70. Southeast winds 5 to 10 mph. Chance of rain 80 percent.

Showers with a chance of thunderstorms in the morning then showers with thunderstorms likely in the afternoon. Highs in the mid 80s. Chance of rain 90 percent.

Showers likely with a chance of thunderstorms. Lows in the lower 70s. Chance of rain 70 percent.

Mostly sunny with a chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 40 percent. Heat index values up to 105 in the afternoon.

Mostly clear with a chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 40 percent. Heat index values up to 105 early in the evening.

Sunny. Highs in the mid 90s. Heat index values up to 105 in the afternoon.

Mostly clear. A slight chance of showers and thunderstorms in the evening. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 105 early in the evening.

Sunny hot with highs in the mid 90s. Heat index values up to 110 in the afternoon.

Mostly clear with a slight chance of showers and thunderstorms. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 105 early in the evening.

Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Hot with highs in the mid 90s. Chance of rain 20 percent. Heat index values up to 105.

Clear with a 45% chance for rain and thunderstorms. Low temperature around 74F. Dew point will be around 70F with an average humidity of 71%. Winds will be 2 mph from the NW.

Sunny with a chance of rain. Chance of precipitation 45%. High temperature around 87F. Dew point will be around 68F with an average humidity of 62%. Winds will be 4 mph from the NW.

Mostly clear with a chance of rain. Chance of precipitation 40%. Low temperature around 71F. Dew point will be around 66F with an average humidity of 72%. Winds will be 5 mph from the N.

Mostly sunny with a chance of rain. Chance of precipitation 35%. High temperature around 83F. Dew point will be around 65F with an average humidity of 64%. Winds will be 5 mph from the N.

Mostly clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 69F. Dew point will be around 64F with an average humidity of 71%. Winds will be 4 mph from the N.