Fishing at Grassy Lake, Lake County, Illinois

• Overview

  Grassy Lake sits in Lake County, out in Illinois. Height above sea level is 748 feet. Roughly 44 acres: a morning covers one end, an afternoon the other. The whole outline is near 1.7 miles, and most of it is walkable. The closest town, North Barrington, is 0.4 miles distant. Lake Barrington lies 0.5 miles off, Tower Lake another 1.8 miles. The boundary is close enough to be worth checking before you fish.

• Where to Fish on Grassy Lake

  We hold no depth figure for this one. Read the surface for the wind lane, then fish the edge of it. This is a lake, so the margins and the first drop matter most. Species logged across Lake County include bluegill, common carp and green sunfish. What holds for the county may not hold for this water. Fish Grassy Lake where the bottom changes rather than where it looks deep.

• Seasonal Patterns

  Typical July readings run about 72°F; by January the average is down near 20°F. Winter puts a hard lid on this one. Look for the thaw near late March; the fishing lifts straight after. Climate averages put the opening at about late March and the closing near mid December. The first weeks of open water and the last are the ones to plan for. That is the shape of the year on Grassy Lake.

• Tackle & Baits

  The access position is unclear from public sources. It formed naturally, so levels move with rainfall rather than with a gate. Recorded parking is half a mile off, far enough to travel light. A jetty or pier is mapped about half a mile from here. Sort the permit out before you load the car. Where parking is tight, arriving early solves most problems. Failing this one, try Lake Barrington, 0.6 miles away. Where Grassy Lake is concerned, a local answer beats a written one.