McCullough Lake
44.3583° N, 80.9213° W
Shoreline and neighbouring water from open government data.
Download the map (SVG)McCullough Lake, Ontario. 44.3583° N, 80.9213° W
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/mccullough-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.
- 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).
McCullough Lake covers 0.54 km², making it larger than 52% of the 18,731 lakes in Ontario. It lies 4.1 km southwest of Williamsford.
Government surveys have recorded 5 fish species here, including smallmouth bass.
- Area
- 0.54 km²
- larger than 52% of the 18,731 lakes in Ontario
- Shoreline
- 5.2 km
- longer than 51% of the 18,731 lakes in Ontario
- Water clarity
- 4.5 mSecchi depth, 2025
- clearer than 72% of the 1,251 monitored lakes in Ontario
- Fish species
- 5
- more than 53% of the 2,454 surveyed lakes in Ontario
- Elevation
- 300 m
Today on the water
5.1 °C
Observed at Owen Sound, as of 5:00 a.m. EDT
choppy Estimated waves, next 12 hours: up to 0.2 m. Around 12 p.m., wind from the northwest: the northwest shore is sheltered, waves build toward the southeast 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 | W 15 | NW 20 | NW 30 | NW 30 | NW 10 | var. 5 | var. 5 | var. 5 |
| Gusts km/h | 50 | 50 | ||||||
| Waves (est.) m | 0.1 | 0.1 | 0.2 | 0.2 | 0.1 | |||
| Temp. °C | 5 | 7 | 11 | 14 | 14 | 11 | 7 | 5 |
| Precip. % | 40 | 40 | 20 | 20 | 0 | 0 | 0 | 0 |
Today: A mix of sun and cloud with 40 percent chance of showers this morning. Clearing this afternoon. Wind becoming northwest 30 km/h gusting to 50 this morning. High 15. UV index 4 or moderate.
Weather: Owen Sound (local forecast), as of 5:02 a.m. EDT
Sun and moon
- Civil dawn
- 7:02 a.m.
- Sunrise
- 7:31 a.m.
- Sunset
- 6:49 p.m.
- Civil dusk
- 7:18 p.m.
- Moonrise
- 6:24 a.m.
- Moonset
- 6:08 p.m.
- Moon
- Waning crescent, 1% lit
Air Quality Health Index
2 low risk
Tiverton, 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 1 government surveys (1968–1968) that recorded them.
Forage fish and other species (4)
Forage fish
- Blacknose Dace 1
- Bluntnose Minnow 1
- Common Shiner 1
Other
- White Sucker 1
Numbers are the surveys that recorded each species.
Fishing regulations: Fisheries Management Zone 16. Check seasons and limits before you fish.
Water
Clarity was measured with a Secchi disk in 25 years between 1995 and 2025; the latest annual mean is 4.5 m.
Follow this lake
Every Friday by email: the Environment Canada forecast and any weather alerts in effect.