10-Day Weather Forecast - Saint Louis, MO

Mostly sunny. Highs in the upper 80s. Northwest winds around 5 mph.

Partly cloudy in the evening then becoming mostly clear. Lows in the mid 60s. North winds around 5 mph.

Sunny. Highs in the upper 80s. Northeast winds around 5 mph.

Mostly clear. Lows in the upper 60s. East winds around 5 mph.

Sunny. Highs in the lower 90s. Southeast winds around 5 mph. Heat index values up to 100.

Mostly clear. Hot. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 105.

Mostly clear. Hot. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 105.

Mostly clear. Hot. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 105.

Mostly clear. Hot. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 105.

Partly cloudy. Lows in the mid 70s. Heat index values up to 100 early in the evening.

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

Partly cloudy. Lows in the lower 70s.

Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 20 percent.

Clear with a 35% chance for rain and thunderstorms. Low temperature around 71F. Dew point will be around 69F with an average humidity of 76%. Winds will be 4 mph from the NE.

Sunny with a slight chance of rain. Chance of precipitation 30%. High temperature around 84F. Dew point will be around 65F with an average humidity of 64%. Winds will be 5 mph from the NE.

Clear. Low temperature around 68F. Dew point will be around 65F with an average humidity of 76%. Winds will be 4 mph from the NE.

Sunny. High temperature around 84F. Dew point will be around 65F with an average humidity of 65%. Winds will be 5 mph from the NE.

Clear. Low temperature around 68F. Dew point will be around 65F with an average humidity of 76%. Winds will be 3 mph from the NE.