Mercier, Quebec Weather
Mercier, 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 Mercier in Mercier; Roussillon.
Marine forecast and fishing conditions near Mercier.
Flight conditions near Mercier. Data source: locating…
Soil conditions, frost risk and crop weather for Mercier.
About Mercier, Quebec
Mercier is a town in Mercier; Roussillon, Quebec, Canada. It has a population of 14,626. Mercier is located at 45.3119°N, 73.7452°W. It observes Eastern Time (UTC−5 / −4). Postal code area: J9Y.
Mercier rests upon a landscape defined by the steady, persistent presence of the Rivière Châteauguay, which carves its path through the low-lying terrain near Le Tertre. It lies 26.5 km south-west of Montréal, QC (from Montréal, QC: bearing 214°T), and is situated 10.4 km east of Beauharnois. The air here holds the weight of the nearby St. Lawrence, carrying a cool, damp clarity that settles over the fields as the sun dips below the horizon. Light at dusk softens the edges of the horizon, turning the sky into a pale, bruised violet that reflects against the slow-moving currents of the river. While Lac Saint-Louis and the Chutes Saint-Louis remain a short distance away, the immediate surroundings of Mercier possess a quiet, agrarian stillness, punctuated only by the subtle shifting of wind through the tall grasses that line the riverbanks. The history of Mercier lingers in the deliberate pace of its streets and the resilience of its local agricultural roots. Industry and domestic life here occupy a space that respects the reach of Parc national d'Oka, which sits further out on the horizon, reminding residents of the vast, protected stretches of the region. Life in Mercier follows the turning of the seasons, where the economy moves in alignment with the rhythms of the land and the modest demands of a population rooted in its geography. On quiet mornings, the silence is so profound that one can hear the faint, insistent rustle of water pressing against the river’s edge, a sound that has defined the character of the inhabitants for generations.
Mercier déploie ses plaines fertiles sur les rives de la Rivière Châteauguay, là où le sol garde la mémoire des labours anciens et la patience des cultivateurs qui ont façonné cette terre de Roussillon. À l'approche du crépuscule, la lumière s'étire sur les champs, révélant une étendue calme qui semble retenir son souffle avant que la nuit ne descende sur le Saint-Laurent tout proche. Non loin du Tertre, les habitants observent le mouvement lent des eaux et le rythme constant d'une agriculture qui définit encore les contours de la vie quotidienne. Le paysage s'ouvre vers le Lac Saint-Louis et les Chutes Saint-Louis, distants d'à peine onze kilomètres, comme une promesse de fraîcheur portée par les vents. Plus loin, à une trentaine de kilomètres, le Parc national d'Oka dessine une ligne sombre sur l'horizon, rappelant aux résidents la présence constante de la nature sauvage. Mercier cultive une identité simple, liée à la terre noire et à la proximité des courants, dans une quiétude que seul vient troubler le passage des saisons agricoles. Ici, l'air porte le parfum humide des berges et la rigueur d'une histoire forgée par le travail acharné, offrant à ceux qui y habitent une existence rythmée par l'immensité du ciel québécois et la présence indéfectible des eaux environnantes.
Live animated radar for Mercier 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 | Mercier, Mercier; Roussillon, Quebec |
| Coordinates | 45.311863°N, 73.745219°W |
| Timezone | Eastern Time (UTC−5 / −4) |
| Postal FSA | J9Y |
| 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 |
About This Mercier, Quebec Weather Page
This page provides live weather conditions and forecasts for Mercier, 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 Mercier includes coordinates 45.311863°N, 73.745219°W, situated in Mercier; Roussillon. Postal FSA: J9Y. 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.