Weather forecast for 10 days
Decatur, IL

Tomorrow, in Decatur, primarily bright and sunny weather is expected as well.
Temperature is forecasted to swing from a high of a warm 84.2°F (29°C) to a low of an enjoyable 64.4°F (18°C).
The maximum heat index, which takes the relative humidity and factors it into the air temperature reading, is estimated at a tropical 89.6°F (32°C). Take into consideration that the heat index values are calculated for shade and light wind conditions.
It will be hotter, and the maximum temperature will be more in line with June's average highest temperature of 80.6°F (27°C) than May's of 72.9°F (22.7°C).
Sunrise will be at 5:37 am and sunset at 8:07 pm; tomorrow's daylight will last for 14h and 29min.

On Sunday, in Decatur, mostly bright and sunny weather is anticipated.
The temperature is forecasted to vary between a maximum of a hot 87.8°F (31°C) and a minimum of a comfortable 66.2°F (19°C).
The highest temperature will be higher and more in line with June's average maximum of 80.6°F (27°C) than May's of 72.9°F (22.7°C).
Sunrise will be at 5:36 am and sunset at 8:07 pm; the daylight will last for 14h and 31min.

The weather will be unstable for the next ten days, and a mix of stormy, sunny, cloudy and rainy weather is predicted.
Rain is expected on Tuesday through Thursday, next Saturday and Sunday. With moderate precipitation of 0.43" (11mm), most rainfall is expected on Wednesday.
Temperature fluctuation will be noticeable in the upcoming days. The maximum temperature will range between 75.2°F (24°C) and 87.8°F (31°C), while the lowest nightly temperature differences will be also substantial, as the minimum temperature will be between 57.2°F (14°C) and 69.8°F (21°C).
Sunday will be the hottest day, with a maximum temperature of 87.8°F (31°C); next Friday will be the coldest day, with the highest temperature of 75.2°F (24°C).