Onion Lake
48.6533° N, 89.1694° W
Onion Lake, Ontario. 48.6533° N, 89.1694° W
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/onion-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.
- Fishing access 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).
Onion Lake covers 1.4 km², Ontario. It lies 30 km north of Thunder Bay.
- Area
- 1.4 km²
- Shoreline
- 27.7 km
- Elevation
- 370 m
Today on the water
-1.3 °C
Observed at Thunder Bay, as of 8:00 a.m. EDT
| Time | 9 a.m. | 12 p.m. | 3 p.m. | 6 p.m. | 9 p.m. | 12 a.m. | 3 a.m. | 6 a.m. |
|---|---|---|---|---|---|---|---|---|
| Wind km/h | var. 5 | var. 5 | SE 10 | SE 10 | SE 20 | SE 20 | SE 20 | SE 20 |
| Gusts km/h | 40 | 40 | 40 | 40 | ||||
| Temp. °C | 3 | 9 | 13 | 11 | 9 | 9 | 8 | 9 |
| Precip. % | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Today: Clear. Becoming a mix of sun and cloud this morning. High 13. UV index 3 or moderate.
Weather: Thunder Bay (local forecast), as of 8:03 a.m. EDT
Sun and moon
- Civil dawn
- 7:36 a.m.
- Sunrise
- 8:08 a.m.
- Sunset
- 7:18 p.m.
- Civil dusk
- 7:50 p.m.
- Moonrise
- 7:00 a.m.
- Moonset
- 6:37 p.m.
- Moon
- Waning crescent, 1% lit
Air Quality Health Index
1 low risk
Thunder Bay, as of 8:00 a.m. EDT
Getting on the water
1 listed boat launch. marks launches on the map.
- Onion Lake Access