Decatur, IL Weather - Tomorrow’s Forecast


Partly sunny


A 30 percent chance of showers after 1pm. Partly sunny, with a high near 78. South southeast wind 7 to 9 mph, with gusts as high as 16 mph.

Sunday Night

Slight chance of thunderstorms

Overnight low:

A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly cloudy, with a low around 62. East wind around 6 mph. Chance of precipitation is 20%.