Custom Search     Crystal Lake     This lake is so wonderful. Camping is available at Three Fingers Campground, and when you're here it's always fun to take a look at Pilot Knob State Park. Camping at Three Finger Campground is always a splendid experience, and Super 8 Forest City is a great site to get some rest. On a good day at Crystal Lake you can take a hike along the Winnebago River Trail, and you'll meet a lot of folks from Crystal Lake here. Crystal Lake gets a normal amount     of annual rainfall. August is when you get the most rain here, and January is the month with the least moisture. Through the summertime highs here at Crystal Lake get into the 80's.   Be the first to submit input for Crystal Lake. If you have info on Crystal Lake, Hancock County, Iowa please submit it here to improve this web site.          Map Detailed Map Weather Local weather forecast