Lac Saint-Pierre

46.8402° N, 70.5574° W

Lac Saint-Pierre, Quebec. 46.8402° N, 70.5574° W

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 Depths are from government surveys and may be outdated.

borealbound.ca/lakes/qc/lac-saint-pierre-near-montmagny/, 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 Saint-Pierre covers 0.22 km², Quebec. It lies 16 km south of Montmagny.

Today on the water

7.9 °C

Wind SW 21 km/h

Observed at Montmagny, as of 7:00 a.m. EDT

Wind from the southwest: the southwest shore is the sheltered side.

Hourly forecast, next 24 hours
Time	8 a.m.	11 a.m.	2 p.m.	5 p.m.	8 p.m.	11 p.m.	2 a.m.	5 a.m.
Wind km/h	SW 20	SW 20	SW 20	SW 20	SW 20	SW 20	SW 20	SW 20
Gusts km/h	40	40	40	40	40	40	40	40
Temp. °C	9	10	11	12	10	8	8	7
Precip. %	30	30	30	30	0	0	0	0

Today: A mix of sun and cloud with 30 percent chance of showers. Wind southwest 20 km/h gusting to 40. High 12. UV index 3 or moderate.

Weather: Montmagny (local forecast), as of 7:00 a.m. EDT