Le Grand-Marais, Quebec — live current conditions, hourly and 7-day forecasts, ECCC alerts, aviation weather, radar and satellite imagery, marine and fishing conditions with a solunar forecast, soil and crop conditions for Le Grand-Marais in Métabetchouan–Lac-à-la-Croix; Lac-Saint-Jean-Est.
Marine forecast and fishing conditions near Le Grand-Marais.
Flight conditions near Le Grand-Marais. Data source: locating…
Soil conditions, frost risk and crop weather for Le Grand-Marais.
Le Grand-Marais is a administrative sector in Métabetchouan–Lac-à-la-Croix; Lac-Saint-Jean-Est, Quebec, Canada. It is classified as a small locality. Le Grand-Marais is located at 48.4694°N, 71.8167°W. It observes Eastern Time (UTC−5 / −4). Postal code area: G8B.
Le Grand-Marais rests as a low-lying sanctuary along the vast, cooling expanse of Lac Saint-Jean. It lies 15.0 km south-west of Alma, QC (from Alma, QC: bearing 233°T), and is situated 11.4 km east-north-east of Desbiens. The terrain around Le Grand-Marais yields to the patient movement of La Belle Rivière, which carries the melt and sediment of the season toward the lake. Within the Mont Résimond-Ratté, the air holds a singular clarity, sharpening the edges of the reeds and grasses that sway in the northern wind. At dusk, the light stretches thin and pale across the water, turning the surface into a sheet of hammered silver that seems to hold the sky in place. This landscape persists in a quiet balance, far removed from the busier stretches of the region, though Parc national de la Pointe-Taillon remains a distant point of reference on the horizon. The history of Le Grand-Marais reflects a long alignment with the cycles of the water and the seasonal demands of the land. Families here have historically looked to the surrounding basin for sustenance, blending small-scale agricultural efforts with the natural rhythms of the shore. Economic life moves with the deliberate pace of the local seasons, where the work of the day often mirrors the resilience required to thrive in such an exposed, open setting. Even as modern life touches the fringes of Métabetchouan–Lac-à-la-Croix, the character of Le Grand-Marais remains defined by the persistent presence of the river and the expansive, watchful horizon of the lake.
Le Grand-Marais s’étire avec une patience minérale sur les rives basses du Lac Saint-Jean, là où la terre semble hésiter entre la solidité du sol et l’ondulation de l’eau. Sous la clarté déclinante du crépuscule, le Mont Résimond-Ratté projette une ombre longue qui enveloppe les terres cultivées, conférant au paysage une solennité presque silencieuse. La Belle Rivière chemine avec une discrétion sinueuse à travers ces plaines, ses eaux sombres charriant la mémoire des premières occupations agricoles qui ont façonné le relief. Le travail des hommes, marqué par une rudesse héritée des anciens, se lit dans la rectitude des clôtures et le rythme lent des machines qui parcourent les champs. À une distance de vingt-huit kilomètres, le Parc national de la Pointe-Taillon garde les confins de cet horizon, rappelant la proximité d’une nature sauvage qui ne demande qu'à reprendre ses droits. Le Grand-Marais respire au rythme de ces cycles immuables, portée par un air frais qui descend des hauteurs pour vivifier les cultures et les âmes. Chaque soir, la lumière changeante transforme la texture des herbages en une étoffe dorée, tandis que le silence, seulement troublé par le souffle du vent sur les rives du Lac Saint-Jean, impose sa loi sur ce territoire de labeur et de patience.
Live animated radar for Le Grand-Marais and surroundings — RainViewer.
NOAA GOES-19 GEOCOLOR — Canada / Northern U.S. sector. Auto-refreshes every 10 minutes on page reload. Frames the whole country from Newfoundland to the BC coast, plus adjacent Pacific and Atlantic storm approaches.
Source: NOAA/NESDIS GOES-19 · Public domain · Sector code can (Canada / Northern U.S.) · Auto-updates on page reload
| Location | Le Grand-Marais, Métabetchouan–Lac-à-la-Croix; Lac-Saint-Jean-Est, Quebec |
| Coordinates | 48.469444°N, 71.816667°W |
| Timezone | Eastern Time (UTC−5 / −4) |
| Postal FSA | G8B |
| Area Code | 263, 354, 367, 418, 438, 450, 514, 579, 581, 819, 873 |
| Page generated | July 2026 |
| Weather data | Open-Meteo (open-source), Environment and Climate Change Canada |
This page provides live weather conditions and forecasts for Le Grand-Marais, Quebec, including current conditions, a 24-hour hourly forecast, 7-day outlook, ECCC extended text forecast, real-time aviation weather (live METAR and TAF reports from the nearest reporting airport, with a modelled estimate shown when no station is in range), precipitation radar and NOAA GOES satellite imagery. Additional sections may include marine and fishing conditions with a solunar forecast for coastal localities, and soil temperature, crop weather and live Water Survey of Canada river gauge data for agricultural areas near a monitored waterway. All data updates automatically on every page visit.
Location data for Le Grand-Marais includes coordinates 48.469444°N, 71.816667°W, situated in Métabetchouan–Lac-à-la-Croix; Lac-Saint-Jean-Est. Postal FSA: G8B. Telephone area code: 263, 354, 367, 418, 438, 450, 514, 579, 581, 819, 873. Timezone: Eastern Time (UTC−5 / −4).
Weather data is sourced from Environment and Climate Change Canada (ECCC) and the open-source Open-Meteo API. Aviation data is sourced from aviationweather.gov, with a modelled estimate used where no nearby reporting station is available. River and stream data is sourced from Water Survey of Canada (WSC) via the ECCC GeoMet realtime hydrometric feed. Marine and solunar data are modelled from Open-Meteo and public sunrise/moon calculations and should be treated as a general guide alongside on-the-water conditions. Radar is provided by RainViewer. Satellite imagery is sourced from NOAA/NESDIS GOES-19 and is public domain.