- Mark Twain State Park Campground Information Mark Twain State Park offers basic and electric campsites, a special-use camping area and a group camp. Services available include reservable sites, a dump station, showers, water and laundry.
- Missouri experiences four distinct seasons with an average yearly temperature of 54 degrees F. Summer temperatures reach 90 degrees F often and are plagued with high humidity levels. Nighttime lows during the summer dip slightly near 70 degrees. September brings cooler fall weather with less...