Weather forecast for 10 days
Marietta, IL

Today, the sky will be partially clouded.
Temperature is anticipated to swing from a high of a hot 89.6°F (32°C) to a low of an agreeable 68°F (20°C).
The maximum heat index, which takes the relative humidity and factors it into the air temperature reading, is estimated at a hot 91.4°F (33°C). Note that heat index values are valued for light wind and location in the shade.
Today, the highest temperature will be higher and more in line with June's average maximum of 80.8°F (27.1°C) than May's of 72°F (22.2°C).
Sunrise was at 5:40 am and sunset will be at 8:15 pm; the daylight will last for 14h and 35min.

The weather will be unstable for the next ten days, and a mix of cloudy, stormy, sunny and rainy weather is predicted.
Rainfall is forecasted for Monday, Tuesday, Friday through next Monday. With moderate precipitation of 0.59" (15mm), most rainfall is expected on Saturday.
Temperature variation will be noticeable in the next ten days. The highest temperature will range between 77°F (25°C) and 89.6°F (32°C), while the lowest nightly temperature differences will be also considerable, as the lowest temperature will be between 51.8°F (11°C) and 68°F (20°C).
Sunday and Tuesday, with the highest temperature of 89.6°F (32°C), will be the hottest days in Marietta; Wednesday, next Sunday and Tuesday, with the highest temperature of 77°F (25°C), will be the coldest days in Marietta.
Combining with the humidity, the maximum feel-like temperature may increase and range between 77°F (25°C) and a sweltering 98.6°F (37°C).