St Charles County, MO 14 Day Weather - WeatherWorld.com

Sizzling hot near 92°F 34°C with a heat index reaching 99°F 37°C, periods of heavy rain and gusty conditions, with increasing humidity and steady pressure. A stray shower or storm late in the day. Winds turning from the SW to the ESE at 6 mph 10 km/h.

Comfortable with temperatures reaching 73°F 23°C, scattered morning showers before drying out later, with lower humidity and steady pressure.

Quite warm around 82°F 28°C, overcast through the afternoon, turning cloudy this evening, with lower humidity and barometric pressure falling.

Hot temperatures near 90°F 32°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure.

Hot and sweltering around 91°F 33°C (heat index 95°F 35°C), cloudy throughout the day, with lower humidity and steady pressure.

Very hot with temperatures reaching 99°F 37°C, cloudy in the morning, sunny in the afternoon, and cloudy this evening, with lower humidity and steady pressure. Winds switching from the SSW to the SW at 9 mph 14 km/h. Gusts up to 21 mph 33 km/h.

Warm and summery around 85°F 30°C (feels like 89°F 32°C), cloudy throughout the day, with lower humidity and steady pressure. Winds moving from the N to the NE at 8 mph 13 km/h.

Enjoyable around 76°F 24°C, scattered downpours possible, with steady humidity and steady pressure.

Mild temperatures up to 75°F 24°C, locally heavy downpours at times, with increasing humidity and steady pressure. Winds swinging from the NE to the ENE at 6 mph 10 km/h.

Warm and summery around 85°F 30°C (feels like 89°F 32°C), periods of heavy rain and gusty conditions, with lower humidity and barometric pressure falling.

Dangerously hot temperatures around 101°F 38°C, sunny in the morning, partly cloudy in the afternoon, and sunny this evening, with steady humidity and barometric pressure falling. Winds shifting from the SW to the NW at 8 mph 13 km/h.

Very hot with a high of 93°F 34°C, feeling closer to 96°F 36°C in the humidity, sunny in the morning, partly cloudy in the afternoon, and sunny this evening, with lower humidity and steady pressure.

Enjoyable around 75°F 24°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds turning from the SSE to the WSW at 3 mph 5 km/h.

Mild temperatures up to 79°F 26°C, scattered downpours possible, with lower humidity and steady pressure. Winds switching from the NNW to the NW at 5 mph 7 km/h.