Weather forecast for 10 days
O'Fallon, MO

On Saturday, April 27, the sky will be moderately clouded.
Minimal precipitation is expected. The highest temperature will be a warm 80.6°F (27°C), while the lowest temperature will be an agreeable 68°F (20°C).
On Saturday, the highest temperature will be higher and more in line with May's average maximum of 74.5°F (23.6°C) than the average maximum of 65.3°F (18.5°C) in April.
Sunrise will be at 6:08 am and sunset at 7:51 pm; the daylight will last for 13h and 43min.

On Sunday, April 28, thunderstorms are anticipated.
Elevated precipitation of 1.02" (26mm) is predicted. The maximum temperature will be a moderately hot 77°F (25°C), while the minimum temperature will be a comfortable 62.6°F (17°C).
The maximum temperature on Sunday will be higher and more in line with May's average highest temperature of 74.5°F (23.6°C) than the average highest temperature of 65.3°F (18.5°C) in April.
Sunrise will be at 6:07 am and sunset at 7:52 pm; the daylight will last for 13h and 45min.

The weather will be unstable for the next ten days, and a mix of cloudy, stormy, sunny and rainy weather is expected.
Rainfall is predicted for Thursday through Monday, next Thursday and Friday. With high precipitation of 1.02" (26mm), most rainfall is expected on Sunday.
Temperature variation will be noticeable in the upcoming period. The highest temperature will vary between 66.2°F (19°C) and 84.2°F (29°C), while the lowest nightly temperature fluctuation will be also considerable, as the lowest temperature will be between 42.8°F (6°C) and 68°F (20°C).
With the highest temperature of 84.2°F (29°C), next Wednesday will be the hottest day; Thursday will be the coldest day, with the highest temperature of 66.2°F (19°C).