Lac Saint-Jean

47.9856° N, 68.8373° W

Lac Saint-Jean, Quebec. 47.9856° N, 68.8373° W

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 Depths are from government surveys and may be outdated.

borealbound.ca/lakes/qc/lac-saint-jean-near-lac-des-aigles/, 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.
Géobase des bathymétries de lac du Québec (GBLQ), Ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs. Licensed under CC BY 4.0. Source: Ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs (MELCCFP), Données Québec.
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).

Lac Saint-Jean covers 1.72 km², Quebec. It lies 6.8 km south of Lac-des-Aigles.

Today on the water

8.3 °C

Wind SSW 10 km/h

Observed at Trois-Pistoles, as of 4:00 a.m. EDT

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

Hourly forecast, next 24 hours
Time	5 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/h	SW 20	SW 20	W 20	W 20	W 20	W 20	W 20	W 20
Gusts km/h			40	40	40	40	40	40
Temp. °C	7	6	7	9	7	6	5	5
Precip. %	0	0	30	30	30	0	0	0

Tonight: A few showers ending this evening then partly cloudy. Risk of a thunderstorm early this evening. Wind southwest 20 km/h. Low 6.

Weather: Trois-Pistoles (local forecast), as of 4:01 a.m. EDT

Follow this lake by email: a weekly summary of conditions.

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 Depths are from government surveys and may be outdated.

Every Friday by email: the Environment Canada forecast and any weather alerts in effect.