Find 140 hotels in Illiopolis

Exploring Illiopolis

The city of Illiopolis has some interesting things to see and do. Popular attractions in and around Illiopolis include:

• Millikin University
• Hickory Point Mall
• Camp Butler National Cemetery
• Henson Robinson Zoo
• Scovill Park West
• Rock Springs Conservation Area
• Kirkland Fine Arts Center

When making plans for your holiday in Illiopolis, you can also use ebookers to find a convenient flight into Decatur, IL (DEC) Airport. You can narrow down your search by number of stops, airline or time of departure to identify one that'll meet your needs.

When is the Best Time to Explore Illiopolis?

If you're curious when is the best time of year to explore Illiopolis, you may find this information about seasonal weather helpful when you are organising your getaway. The warmest months in Illiopolis are typically July and August, whereas the coldest months are usually January and February. The months with the most rain are June and May, whereas January and February have the least.

Here's a rundown on how much rain you can expect and what the temperatures are going to be like:

• From January to March, the average daytime temperature is 11°C and at night it is -6°C. Seasonal average rainfall is 229 mm.
• If you visit between April and June, you can expect an average temp of 27°C during the day and 7°C at night. Average rainfall during this season is 429 mm.
• The daytime average temp from July to September is 28°C and the night-time average is 15°C. Average precipitation for this season is 283 mm.
• Between October and December, the average temp during the day is 18°C and -2°C at night. Seasonal average rain is 256 mm.
• The annual rainfall average in Illiopolis is 1197 mm.