Marie Louise Lake
48.3832° N, 88.8014° W
Shoreline and neighbouring water from open government data.
Download the map (SVG)Marie Louise Lake, Ontario. 48.3832° N, 88.8014° W
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/marie-louise-lake/, compiled October 9, 2026
- Canadian Geographical Names Database, Natural Resources Canada. Contains information licensed under the Open Government Licence – Canada.
- HydroLAKES v1.0, Messager et al. 2016 / WWF HydroSHEDS. Licensed under CC BY 4.0.
- Census boundaries and population, 2021, Statistics Canada. Adapted from Statistics Canada. This does not constitute an endorsement by Statistics Canada.
- Aquatic Resource Area survey points, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
- Fisheries Management Zones, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
- City page weather forecasts and alerts, Environment and Climate Change Canada. Contains data from Environment and Climate Change Canada (ECCC Data Servers End-use Licence).
- Air Quality Health Index observations and forecasts, Environment and Climate Change Canada. Contains data from Environment and Climate Change Canada (ECCC Data Servers End-use Licence).
- Guide to Eating Ontario Fish: Advisory Database, Ontario Ministry of the Environment, Conservation and Parks. Contains information licensed under the Open Government Licence – Ontario.
Marie Louise Lake covers 7.75 km², making it larger than 94% of the 18,731 lakes in Ontario. It lies 3.2 km north of Silver Islet.
Government surveys have recorded 9 fish species here, including yellow perch, northern pike and smallmouth bass.
- Area
- 7.75 km²
- larger than 94% of the 18,731 lakes in Ontario
- Shoreline
- 19 km
- longer than 87% of the 18,731 lakes in Ontario
- Fish species
- 9
- more than 69% of the 2,454 surveyed lakes in Ontario
- Elevation
- 223 m
Today on the water
-1.3 °C
Observed at Thunder Bay, as of 5:00 a.m. EDT
choppy Estimated waves, next 12 hours: up to 0.2 m. Around 5 p.m., wind from the east: the east shore is sheltered, waves build toward the west shore.
| Time | 6 a.m. | 9 a.m. | 12 p.m. | 3 p.m. | 6 p.m. | 9 p.m. | 12 a.m. | 3 a.m. |
|---|---|---|---|---|---|---|---|---|
| Wind km/h | var. 5 | var. 5 | SE 10 | SE 10 | E 20 | SE 20 | SE 15 | SE 10 |
| Waves (est.) m | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | |||
| Temp. °C | 0 | 2 | 9 | 13 | 12 | 9 | 9 | 10 |
| Precip. % | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Tonight: Partly cloudy with 40 percent chance of showers early this evening. Clearing this evening. Wind west 20 km/h becoming light this evening. Low minus 1.
Weather: Thunder Bay (local forecast), as of 5:07 a.m. EDT
Sun and moon
- Civil dawn
- 7:34 a.m.
- Sunrise
- 8:06 a.m.
- Sunset
- 7:17 p.m.
- Civil dusk
- 7:48 p.m.
- Moonrise
- 6:59 a.m.
- Moonset
- 6:36 p.m.
- Moon
- Waning crescent, 1% lit
Air Quality Health Index
1 low risk
Thunder Bay, as of 4:00 a.m. EDT
Follow this lake by email: a weekly summary of conditions.
Fish
Sport fish by the share of the 26 government surveys (2008–2025) that recorded them.
Forage fish and other species (5)
Forage fish
- Spottail Shiner 9
- Logperch 3
- Blacknose Dace 1
- Central Mudminnow 1
Other
- White Sucker 23
Numbers are the surveys that recorded each species.
Eating your catch
The provincial guide to eating fish (2026) sets limits for 2 species from Marie Louise Lake. Maximum meals per month:
| Species | Length | General population | Sensitive population* | Contaminant |
|---|---|---|---|---|
| Northern Pike | 55-60 cm | 16 | 4 | Mercury |
| Smallmouth Bass | 35-40 cm | 8 | 4 | Mercury |
* As defined in the guide, including children and people who are or may become pregnant. Limits are for the length the guide lists most often; they change with the size of the fish. Read the official guide
Fishing regulations: Fisheries Management Zone 6. Check seasons and limits before you fish.
Follow this lake
Every Friday by email: the Environment Canada forecast and any weather alerts in effect.