Sainte-Catherine, 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 Sainte-Catherine in Sainte-Catherine; Roussillon.
Marine forecast and fishing conditions near Sainte-Catherine.
Flight conditions near Sainte-Catherine. Data source: locating…
Soil conditions, frost risk and crop weather for Sainte-Catherine.
Sainte-Catherine is a town in Sainte-Catherine; Roussillon, Quebec, Canada. It has a population of 17,347. Sainte-Catherine is located at 45.4055°N, 73.5715°W. It observes Eastern Time (UTC−5 / −4). Postal code area: J5C.
Sainte-Catherine rests along the expansive reach of the St. Lawrence, where the shifting light of the afternoon turns the water into a sheet of hammered silver. It lies 11.6 km south of Montréal, QC (from Montréal, QC: bearing 187°T), and is situated 14.8 km east-north-east of Châteauguay. The Rivière Saint-Régis flows quietly toward the larger current, carving a path through the low-lying terrain near the Le Tertre. Residents often catch the scent of damp earth and cooling stone as the evening settles over the docks, a reminder of the proximity to the water that defines the local atmosphere. While Lac aux Castors remains a distant eleven kilometers away and the protected expanse of Parc national des Îles-de-Boucherville sits twenty-four kilometers to the east, the immediate surroundings of Sainte-Catherine hold a quiet persistence of their own. The air here carries a heavy, humid clarity during the summer months, grounding the senses in the physical reality of a landscape shaped by the constant presence of the river. Industry and the movement of goods along the maritime corridor have long dictated the pace of life in Sainte-Catherine, anchoring the local economy to the flow of the St. Lawrence. The history of the region is marked by the pragmatic needs of trade and the steady transit of vessels, creating a pragmatic culture that values the utility of the shoreline. Despite the mechanical hum of modern logistics, moments of stillness emerge when the wind drops and the surface of the river mirrors the sky with startling precision. Sainte-Catherine maintains a distinct identity, one that balances the demands of regional commerce with the simple, recurring patterns of a life lived at the water's edge.
Sainte-Catherine s’étire avec une patience minérale le long des rives du Saint-Laurent, là où le souffle du large rencontre la terre ferme du Tertre. La lumière du couchant y dépose des reflets d'argent sur les eaux tranquilles, tandis que la Rivière Saint-Régis serpente doucement vers son embouchure, apportant avec elle le murmure des terres intérieures. L'horizon, vaste et dégagé, semble suspendre le rythme des heures pour laisser place au calme des berges. À une distance qui se devine plus qu'elle ne se mesure, le Lac aux Castors et le Parc national des Îles-de-Boucherville composent une lointaine silhouette naturelle, rappelant la proximité des grands espaces sauvages. Sainte-Catherine porte en elle cette existence tournée vers le courant, une manière d'être façonnée par les cycles de l'eau et la présence constante du grand fleuve qui dicte, depuis toujours, le tempérament de ses habitants. Ici, le quotidien s'accorde au vent qui remonte les berges, une brise chargée d'une fraîcheur ancienne qui traverse les espaces ouverts et les zones habitées. La vie se déroule dans une simplicité rigoureuse, portée par le poids des saisons qui modifient la couleur du ciel et la texture des champs environnants, offrant à ceux qui y séjournent une perspective différente sur la permanence du monde.
Live animated radar for Sainte-Catherine 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 | Sainte-Catherine, Sainte-Catherine; Roussillon, Quebec |
| Coordinates | 45.405472°N, 73.571541°W |
| Timezone | Eastern Time (UTC−5 / −4) |
| Postal FSA | J5C |
| 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 Sainte-Catherine, 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 Sainte-Catherine includes coordinates 45.405472°N, 73.571541°W, situated in Sainte-Catherine; Roussillon. Postal FSA: J5C. 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.