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Lac Mountains

45.4853° N, 75.8805° W

Lac Mountains, Quebec. 45.4853° N, 75.8805° W

Not for navigation. Depths are from government surveys and may be outdated.

borealbound.ca/lakes/qc/lac-mountains/, 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.
  • 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).

Lac Mountains covers 0.16 km², Quebec. It lies 29 km west of Ottawa.

Area
0.16 km²
Shoreline
4.8 km
Elevation
103 m

Today on the water

5.3 °C

Mostly CloudyWind WNW 4 km/h

Observed at Chelsea, as of 4:00 a.m. EDT

Time5 a.m.8 a.m.11 a.m.2 p.m.5 p.m.8 p.m.11 p.m.2 a.m.
Wind km/hW 10NW 10NW 20NW 20NW 20NW 10var. 5var. 5
Temp. °C5591210631
Precip. %6030303030000

Tonight: Partly cloudy with 60 percent chance of showers. Wind west 20 km/h becoming light early this evening. Low plus 5.

Weather: Chelsea (local forecast), as of 4:01 a.m. EDT

Sun and moon

Civil dawn
6:42 a.m.
Sunrise
7:12 a.m.
Sunset
6:28 p.m.
Civil dusk
6:58 p.m.
Moonrise
6:03 a.m.
Moonset
5:47 p.m.
Moon
Waning crescent, 1% lit

Air Quality Health Index

1 low risk

Ottawa, as of 4:00 a.m. EDT