Châteauguay, 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 Châteauguay in Châteauguay; Roussillon.
Marine forecast and fishing conditions near Châteauguay.
Flight conditions near Châteauguay. Data source: locating…
Soil conditions, frost risk and crop weather for Châteauguay.
Châteauguay is a town in Châteauguay; Roussillon, Quebec, Canada. It is classified as a town. Châteauguay is located at 45.3609°N, 73.7502°W. It observes Eastern Time (UTC−5 / −4). Postal code area: J6K.
Châteauguay settles with a quiet permanence where the Rivière Châteauguay meets the expansive reach of Lac Saint-Louis, grounding its identity in the persistent flow of water and the quiet rise of Le Tertre. It lies 22.5 km south-west of Montréal, QC (from Montréal, QC: bearing 223°T), and is situated 11.3 km east-north-east of Beauharnois. The light here carries a particular weight at dusk, reflecting off the river’s surface to gild the reeds and the low-lying shore in shades of soft amber and slate. Beyond the immediate banks, the land holds a steady, grounded presence, feeling at once anchored to the currents of the river and open to the vast, shifting sky that defines the horizon. Even as the wind stirs the trees, the terrain maintains a calm composure, cradling the houses and streets that follow the contours of the earth. The history of Châteauguay draws its strength from the deep connection between the people and the land, a relationship that has shaped its development from early agricultural roots into a modern presence within Roussillon. Residents often find their daily lives punctuated by the sight of the water, a constant companion that influences everything from the local pace of work to the way the evening air cools the streets. While the proximity to Chutes Saint-Louis and the more distant Parc national d'Oka offers a sense of wider natural surroundings, the heart of Châteauguay remains firmly fixed on its own riverbanks and the steady pulse of its local economy. The character of the place persists in these simple, recurring patterns, where the sound of the Rivière Châteauguay provides a low, rhythmic background to the business of the day.
Châteauguay déploie son étendue sur les rives apaisées du Lac Saint-Louis, là où le ciel bas semble se pencher pour écouter les murmures de la Rivière Châteauguay. Le terrain, façonnant le relief du Tertre, porte en lui une mémoire ancienne, celle des labours et des horizons ouverts qui ont défini les premières occupations de ces terres fertiles. À l'heure où le crépuscule dépose une lumière ambrée sur les berges, le passage de l'eau devient le battement de cœur de Châteauguay, rythmant la vie de ceux qui habitent ces espaces habitués aux vents venant des plaines. À quelque distance, la puissance des Chutes Saint-Louis rappelle la force brute des éléments, tandis que le Parc national d'Oka, plus lointain, souligne la ceinture de verdure qui encadre ce paysage québécois. Les façades des maisons et les chemins qui longent le cours d'eau racontent une persévérance silencieuse, celle d'une population qui a su maintenir son attachement à ce sol riverain malgré les mutations industrielles. L’air frais, chargé de l'humidité du bassin, enveloppe les promeneurs d'une sensation de pérennité, invitant à contempler le mouvement lent du courant qui, inlassablement, porte le poids de l'histoire vers l'immensité du fleuve.
Live animated radar for Châteauguay 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 | Châteauguay, Châteauguay; Roussillon, Quebec |
| Coordinates | 45.360927°N, 73.75018°W |
| Timezone | Eastern Time (UTC−5 / −4) |
| Postal FSA | J6K |
| 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 Châteauguay, 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 Châteauguay includes coordinates 45.360927°N, 73.750180°W, situated in Châteauguay; Roussillon. Postal FSA: J6K. 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.