O'Fallon, IL 14 Day Weather - 62269 WeatherWorld.com

Scorching heat reaching 104°F 40°C, feeling like 113°F 45°C, sunny through the afternoon, turning cloudy this evening, with lower humidity and barometric pressure falling. Winds turning from the WSW to the SSE at 7 mph 11 km/h.

Sweltering temperatures near 103°F 39°C with a heat index of 106°F 41°C, scattered downpours possible, with increasing humidity and steady pressure. A stray shower or storm late in the day. Winds switching from the W to the NE at 14 mph 23 km/h. Gusts up to 22 mph 35 km/h.

Very hot with a high of 93°F 34°C, feeling closer to 96°F 35°C in the humidity, partly cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds NE at 13 mph 21 km/h. Gusts up to 26 mph 42 km/h.

Warm temperatures up to 88°F 31°C, sunny throughout the day, with lower humidity and steady pressure. Winds swinging from the E to the ENE at 10 mph 15 km/h.

Very hot with a high of 98°F 37°C, sunny throughout the day, with steady humidity and barometric pressure falling. Winds blowing from the SSW at 9 mph 14 km/h.

Sweltering heat reaching 101°F 39°C, cloudy in the morning, sunny in the afternoon, and partly cloudy this evening, with lower humidity and steady pressure. Winds turning from the SSW to the NNE at 10 mph 16 km/h. Gusts up to 20 mph 31 km/h.

Hot and sweltering around 90°F 32°C, cloudy in the morning, becoming overcast through the afternoon and evening, with lower humidity and barometric pressure falling. Winds switching from the NE to the ENE at 7 mph 12 km/h.

Enjoyable around 74°F 23°C, scattered morning showers before drying out later, with lower humidity and steady pressure. Winds moving from the E to the NE at 15 mph 24 km/h. Gusts up to 24 mph 39 km/h.

Mild temperatures up to 78°F 26°C, locally heavy downpours at times, with lower humidity and steady pressure. Winds swinging from the SE to the E at 7 mph 11 km/h.

Warm and summery around 87°F 31°C (feels like 92°F 33°C), sunny in the morning, partly cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure. Winds picking up from E at 4 mph 6 km/h to ESE at 13 mph 22 km/h. Gusts up to 24 mph 38 km/h.

Pleasant near 73°F 23°C, sunny throughout the day, with lower humidity and steady pressure. Winds turning from the NE to the ENE at 8 mph 12 km/h.

Balmy with temperatures reaching 80°F 27°C, sunny in the morning, becoming cloudy through the afternoon and evening, with steady humidity and barometric pressure falling. Winds switching from the SE to the SSE at 10 mph 16 km/h. Gusts up to 22 mph 35 km/h.

Scorching hot near 101°F 38°C, early showers breaking for a drier afternoon, with lower humidity and steady pressure. Winds out of the SSW at 17 mph 28 km/h. Gusts up to 20 mph 33 km/h.

Hot and sweltering around 95°F 35°C (heat index 98°F 37°C), scattered downpours possible, with increasing humidity and steady pressure. Winds swinging from the SW to the NNW at 11 mph 18 km/h. Gusts up to 21 mph 33 km/h.