Find 28 hotels in Marietta

Exploring Marietta

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

• Western Illinois University
• Dickson Mounds Museum
• Gold Hills Golf Course
• Western Illinois Museum
• Western Hall
• Hanson Field

When is the Best Time to Explore Marietta?

If you're wondering when is the best time of year to visit Marietta, you may find this information about seasonal weather helpful when planning your trip. The warmest months in Marietta 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 an overview 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 10°C and at night it is -7°C. Seasonal average rainfall is 215 mm.
• If you visit between April and June, you can expect an average temp of 27°C during the day and 6°C at night. Average rainfall during this season is 452 mm.
• The daytime average temp from July to September is 29°C and the night-time average is 15°C. Average precipitation for this season is 295 mm.
• Between October and December, the average temp during the day is 18°C and -3°C at night. Seasonal average rain is 237 mm.
• The annual rainfall average in Marietta is 1199 mm.