The lake bed in 3-D: deep basin, drop-offs and shoreline. Shape estimated, not for navigation. Spot 1 (back of a cove) is open for everyone; the other 2 come with LakeScope PRO. Full screen
Wonder Lake
McHenry County, Illinois · about 720 acres (1.1 sq mi)
55°F water, windy Friday (15 mph N).
About Wonder Lake
Wonder Lake spreads over about 720 acres in McHenry County, Illinois.
From end to end it runs about 3.3 miles with roughly 9.6 miles of shoreline. The water sits about 800 ft above sea level. Wonder Lake sits right on the water.
- Size
- About 720 acres (1.1 sq mi)
- Shoreline
- About 9.6 miles
- End to end
- About 3.3 miles
- Elevation
- About 800 ft
- County
- McHenry County
The lake from above
Best fishing times
Friday Fair
- 6:00 am – 8:15 amsunrise
- 3:00 pm – 4:30 pm bestsunset, moon overhead · wind 15 mph
Saturday Good
- 6:00 am – 8:15 amsunrise · wind 5 mph
- 3:00 pm – 5:15 pm bestsunset, moon overhead · wind 5 mph
Based on sun and moon times and the wind forecast. A guide, not a promise. The app shows the whole week.
Fish to expect
For a lake of this size in Illinois, largemouth bass, crappie, bluegill and sunfish and catfish are the fish to expect. The state fish and wildlife agency lists what is stocked and the rules for this lake. At 55°F on the surface right now, here is how each one should behave.
- FairLargemouth bass
Cooling down. Try slow baits on points and deeper channel edges.
- FairCrappie
Schooled on deeper brush piles. Fish small jigs slowly.
- FairBluegill and sunfish
Warming. Shallow, sunny pockets in the afternoon.
- FairCatfish
Waking up. Channels and creek mouths, especially after rain.
From today's water temperature and the season. A guide, not a promise.
Fishing spots
- 1Back of a cove
Sheltered, shallower water where baitfish gather.
- 2
- 3
2 more spots with LakeScope PRO: fish, depth band, water temperature, best time and bait for each.
Picked from the shape of the lake bed. A guide, not a promise.
Water temperature
At the surface, seen .
Water level
No daily level reading for this lake.
Ice
Open water
Ice thickness is an estimate from air temperature, not a measurement. Check the ice yourself before going on it.
Weather and wind
Sunrise 6:42 am · sunset 4:32 pm · waxing crescent moon (lake time).
Towns and places to stay near Wonder Lake
- Wonder Lakeon the shore
- Bull Valleyabout 2.8 mi south
- McCullom Lakeabout 3 mi east
- Richmondabout 5 mi north
Prices and availability come from booking partners; we may earn a commission at no cost to you.
Questions about Wonder Lake
What fish are in Wonder Lake?
Lakes like Wonder Lake usually hold largemouth bass, crappie, bluegill and sunfish and catfish. Check the state fish and wildlife agency for stocking and limits.
How deep is Wonder Lake?
We have no published depth for this lake. The 3-D view gives an estimated shape of the bed: where the deep basin and the drop-offs are. Not for navigation.
How big is Wonder Lake?
About 720 acres, with about 9.6 miles of shoreline.
What town is near Wonder Lake?
Wonder Lake is on the shore; Bull Valley is about 2.8 miles south.
What is the water temperature at Wonder Lake today?
The surface was about 55°F on the latest clear reading. The page updates every day.
Wonder Lake on your phone
The whole week of bite times, lake alerts and the 3-D view, every morning.
