The lake bed in 3-D: deep basin, drop-offs and shoreline. Shape estimated, not for navigation. Spot 1 (point drop-off) is open for everyone; the other 5 come with LakeScope PRO. Full screen
LaSalle Lake
LaSalle County, Illinois · 2,060 acres (3.2 sq mi)
66°F water, windy Friday (15 mph N).
About LaSalle Lake
In LaSalle County, Illinois, LaSalle Lake covers 2,060 acres; it is a reservoir. LaSalle Lake is a cooling reservoir for the LaSalle County Nuclear Generating Station and is stocked with muskellunge and walleye.
From end to end it runs about 2.1 miles and its shoreline adds up to about 7.3 miles. The water sits about 700 ft above sea level. The deepest water is about 70 ft, with an average depth near 15 ft. Seneca is about 3.1 miles north. The closest city is Joliet, about 33 miles away.
- Size
- 2,060 acres (3.2 sq mi)
- Deepest
- About 70 ft (average 15 ft)
- Shoreline
- About 7.3 miles
- End to end
- About 2.1 miles
- Elevation
- About 700 ft
- Type
- Reservoir
- County
- LaSalle County
The lake from above
Best fishing times
Saturday Good
- 6:00 am – 8:15 amsunrise · wind 5 mph
- 3:00 pm – 5:15 pm bestsunset, moon overhead · wind 5 mph
Sunday Good
- 6:00 am – 8:15 amsunrise · wind 0 mph
- 3:45 pm – 5:15 pm bestsunset, moon overhead · wind 0 mph
Based on sun and moon times and the wind forecast. A guide, not a promise. The app shows the whole week.
Fish in LaSalle Lake
Anglers come to LaSalle Lake for walleye, muskie, white bass, striped bass, largemouth bass, smallmouth bass, crappie, bluegill and sunfish and catfish. With the surface at 66°F, the notes below say which of them should be biting.
- GoodWalleye
Prime range. Low light is best, on reefs and weed edges.
- GoodMuskie
Active range. Weed beds and rocky points.
- GoodWhite bass
Schools chasing bait on points. Watch for splashes.
- FairStriped bass
Warming. Early-morning topwater, then they go deep.
- GoodLargemouth bass
Fall feed. They chase baitfish into creeks and coves.
From today's water temperature and the season. A guide, not a promise.
Fishing spots
- 1Point drop-off
The bottom falls away fast off this point; fish rest deep and move up the slope to feed.
- 2
- 3
- 4
- 5
- 6
5 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 6:40 am · sunset 4:36 pm · waxing crescent moon (lake time).
Towns and places to stay near LaSalle Lake
- Senecaabout 3.1 mi north
- Marseillesabout 5.5 mi northwest
- Ottawaabout 11 mi northwest
- Morrisabout 12 mi northeast
- Jolietnearest city, about 33 mi northeast
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Questions about LaSalle Lake
What fish are in LaSalle Lake?
LaSalle Lake holds walleye, muskie, white bass, striped bass, largemouth bass, smallmouth bass, crappie, bluegill and sunfish and catfish. Check the state fish and wildlife agency for stocking and limits.
How deep is LaSalle Lake?
About 70 ft at the deepest point, about 15 ft on average. The 3-D view shows where the deep water is.
How big is LaSalle Lake?
2,060 acres, with about 7.3 miles of shoreline.
What town is near LaSalle Lake?
Seneca is about 3.1 miles north; Marseilles is about 5.5 miles northwest.
What is the water temperature at LaSalle Lake today?
The surface was about 66°F on the latest clear reading. The page updates every day.
LaSalle Lake on your phone
The whole week of bite times, lake alerts and the 3-D view, every morning.
