Neilson Lake
44.9843° N, 79.5272° W
Neilson Lake, Ontario. 44.9843° N, 79.5272° W
Not for navigation. Depths are from government surveys and may be outdated.
borealbound.ca/lakes/on/neilson-lake-near-gravenhurst/, 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.
- 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).
Neilson Lake covers 0.17 km², Ontario. It lies 20 km northwest of Gravenhurst.
- Area
- 0.17 km²
- Shoreline
- 2.8 km
- Water clarity
- 1.5 mSecchi depth, 2002
- Elevation
- 242 m
Today on the water
8.2 °C
Observed at Gravenhurst, as of 3:00 a.m. EDT
Wind from the northwest: the northwest shore is the sheltered side.
| 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 | W 15 | W 15 | W 15 | NW 30 | NW 30 | NW 15 | var. 5 | var. 5 |
| Gusts km/h | 50 | 50 | ||||||
| Temp. °C | 4 | 5 | 8 | 12 | 14 | 11 | 6 | 3 |
| Precip. % | 40 | 40 | 40 | 40 | 20 | 20 | 0 | 0 |
Tonight: Partly cloudy with 60 percent chance of showers. Risk of a thunderstorm early this evening. Wind northwest 30 km/h gusting to 50 becoming light this evening. Low plus 4.
Weather: Gravenhurst (local forecast), as of 3:02 a.m. EDT
Sun and moon
- Civil dawn
- 6:56 a.m.
- Sunrise
- 7:26 a.m.
- Sunset
- 6:43 p.m.
- Civil dusk
- 7:13 p.m.
- Moonrise
- 6:18 a.m.
- Moonset
- 6:02 p.m.
- Moon
- Waning crescent, 1% lit
Air Quality Health Index
2 low risk
Parry Sound, as of 2:00 a.m. EDT
Follow this lake by email: a weekly summary of conditions.
Follow this lake
Every Friday by email: the Environment Canada forecast and any weather alerts in effect.