One Island Lake
48.6456° N, 89.4278° W
One Island Lake, Ontario. 48.6456° N, 89.4278° W
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/one-island-lake-near-thunder-bay/, 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.
- Fisheries Management Zones, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
- Lake Partner Program, Ontario Ministry of the Environment, Conservation and Parks. Contains information licensed under the Open Government Licence – Ontario.
- Bathymetry lines and survey index, 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).
- Ontario Waterbody Location Identifier, Ontario Ministry of Natural Resources. Contains information licensed under the Open Government Licence – Ontario.
One Island Lake covers 1.07 km², Ontario. It lies 30 km northwest of Thunder Bay.
- Area
- 1.07 km²
- Shoreline
- 5 km
- Water clarity
- 1.3 mSecchi depth, 2018
- Elevation
- 444 m
Today on the water
0 °C
Observed at Thunder Bay, as of 3:00 a.m. EDT
| Time | 4 a.m. | 7 a.m. | 10 a.m. | 1 p.m. | 4 p.m. | 7 p.m. | 10 p.m. | 1 a.m. |
|---|---|---|---|---|---|---|---|---|
| Wind km/h | var. 5 | var. 5 | var. 5 | SE 10 | SE 10 | E 20 | SE 20 | SE 15 |
| Temp. °C | 2 | 0 | 4 | 11 | 14 | 11 | 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 3:02 a.m. EDT
Sun and moon
- Civil dawn
- 7:37 a.m.
- Sunrise
- 8:09 a.m.
- Sunset
- 7:19 p.m.
- Civil dusk
- 7:51 p.m.
- Moonrise
- 7:01 a.m.
- Moonset
- 6:38 p.m.
- Moon
- Waning crescent, 1% lit
Air Quality Health Index
1 low risk
Thunder Bay, as of 2:00 a.m. EDT
Follow this lake by email: a weekly summary of conditions.
Water
Clarity was measured with a Secchi disk in 2 years between 2017 and 2018; the latest annual mean is 1.3 m.
Follow this lake
Every Friday by email: the Environment Canada forecast and any weather alerts in effect.