Le Grand-Boisé, 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-Boisé in La Prairie; Roussillon.
Marine forecast and fishing conditions near Le Grand-Boisé.
Flight conditions near Le Grand-Boisé. Data source: locating…
Soil conditions, frost risk and crop weather for Le Grand-Boisé.
Le Grand-Boisé is a residential area in La Prairie; Roussillon, Quebec, Canada. It is classified as a small locality. Le Grand-Boisé is located at 45.4000°N, 73.4742°W. It observes Eastern Time (UTC−5 / −4). Postal code area: J5R.
Le Grand-Boisé rests as a quiet reach of land near the Le Coteau, defined by the low, steady pulse of the Rivière Saint-Jacques as it winds toward the larger expanse of the St. Lawrence. It lies 13.6 km south-south-east of Montréal, QC (from Montréal, QC: bearing 153°T), and is situated 13.1 km south-south-west of Longueuil. The terrain here holds a particular stillness, where the light at dusk catches the damp edges of the soil, turning the grasses a bruised, metallic gold before the shadows lengthen. This is a landscape of transition, where the heavy, humid air of the river valley settles early, cooling the fields and pressing against the edges of the woods. Further afield, the presence of Lac de l'Île Notre-Dame sits 12 km away, while the distant rise of Parc national du Mont-Saint-Bruno marks the horizon at 21 km, framing the local view with a subtle, distant permanence. Life in Le Grand-Boisé carries the weight of a long agricultural past, shifting now into the quiet efficiency of modern La Prairie. Generations have worked this Roussillon earth, finding a stubborn fertility in the silt deposited by the Rivière Saint-Jacques, a waterway that serves as both a drain for the fields and a memory of the early settlers who first cleared the brush. The economy here moves with the deliberate pace of those who know the land, balancing the demands of a growing region with the lingering habit of tending to one’s own patch of ground. Whether through the seasonal maintenance of property or the steady transit of people toward the St. Lawrence, Le Grand-Boisé maintains a character that values the tangible over the fleeting, grounded firmly in a geography that has seen the slow, patient clearing of the woods and the eventual return of the wild to the margins of the town.
Le Grand-Boisé déploie ses frondaisons sur les rives du Saint-Laurent, là où l'air chargé d'humidité semble suspendre le mouvement des heures. À proximité du Coteau, le terrain s'incline doucement vers la Rivière Saint-Jacques, dont les eaux calmes serpentent entre les terres cultivées et les zones résidentielles, rappelant la patience nécessaire aux anciens défricheurs de ces sols argileux. La lumière du crépuscule, déclinant sur les plaines de La Prairie, baigne Le Grand-Boisé d'une clarté dorée qui accentue la droiture des arbres et la rectitude des chemins. Au loin, le souvenir des terres plus lointaines se devine par la présence, à douze kilomètres, du Lac de l'Île Notre-Dame, tandis que le Parc national du Mont-Saint-Bruno, situé à vingt et un kilomètres, offre une silhouette bleutée aux confins de l'horizon. Les habitants vivent ici dans une intimité discrète avec le fleuve, un voisinage qui dicte, par ses marées et ses souffles, le rythme des jours. Dans ce silence particulier de la plaine, l'héritage agricole se transmute en une quiétude moderne, où le sol, autrefois tourné vers la subsistance, porte désormais les traces d'une vie quotidienne attentive aux moindres variations de la saison, entre la terre ferme et la mouvance incessante des eaux.
Live animated radar for Le Grand-Boisé 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-Boisé, La Prairie; Roussillon, Quebec |
| Coordinates | 45.4°N, 73.474167°W |
| Timezone | Eastern Time (UTC−5 / −4) |
| Postal FSA | J5R |
| 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-Boisé, 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-Boisé includes coordinates 45.400000°N, 73.474167°W, situated in La Prairie; Roussillon. Postal FSA: J5R. 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.