St. Catharines, Ontario Weather
St. Catharines, Ontario — live current conditions, hourly and 7-day forecasts, ECCC alerts, aviation weather, radar and satellite imagery, marine and fishing conditions with a solunar forecast for St. Catharines in Niagara.
Marine forecast and fishing conditions near St. Catharines.
Flight conditions near St. Catharines. Data source: locating…
About St. Catharines, Ontario
St. Catharines is a city in Niagara, Ontario, Canada. With a population of 136,803, St. Catharines is a major urban centre in Ontario. St. Catharines is located at 43.1654°N, 79.2533°W. It observes Eastern Time (UTC−5 / −4). Postal code area: L2W.
St. Catharines rests upon the earth with a quiet persistence, anchored firmly where the land meets the expansive horizon of Lake Ontario. It lies 16.7 km north-west of Niagara Falls, ON (from Niagara Falls, ON: bearing 315°T), and is situated 14.7 km north-north-east of Pelham. The terrain rises toward Sanitorium Hill, a vantage point that catches the silver quality of light filtering through the clouds during the long, humid evenings of summer. Below, the Welland Canal cuts a deliberate path through the geography, its presence defining the movement of the landscape and the slow, heavy transit of ships that seem to drift through the fields like quiet ghosts. Nearby, the water at DeCew Falls drops with a steady, rhythmic intensity, while the nearby Woodend Conservation Area offers a retreat into a quieter, wooded stillness that contrasts with the industrial pulse of the canal. The history of St. Catharines is inseparable from the deep, engineered channels that once drew industry to its borders. The economy has shifted over generations, moving from the demands of early milling and manufacturing to a modern reliance on diverse commercial sectors and the academic influence of Brock University. Throughout the workday, the air carries a faint, metallic resonance, a lingering echo of the heavy machinery and shipping prowess that once solidified the region as a vital node of transit. There is a particular texture to the streets here, where the legacy of labor persists in the brickwork of old warehouses and the persistent, industrious character of the local workforce. Cultural life in St. Catharines finds its expression in the seasonal shifts, from the vibrant bloom of spring to the crisp, clear air that settles over the valley in late autumn. The community gathers for events that celebrate the bounty of the surrounding earth, reflecting a heritage that respects both the land and the ingenuity required to harness its resources. Notable figures, such as the musician Neil Peart, found their formative footing here, their creative spirits perhaps shaped by the unique intersection of water and industry that defines the horizon. Whether walking the paths near the canal or observing the shadows lengthen over Sanitorium Hill, one senses that St. Catharines holds its own distinct gravity, a place where the water and the land maintain a constant, watchful dialogue.
Live animated radar for St. Catharines 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 | St. Catharines, Niagara, Ontario |
| Coordinates | 43.16544°N, 79.2533°W |
| Timezone | Eastern Time (UTC−5 / −4) |
| Postal FSA | L2W |
| Area Code | 226, 249, 289, 343, 365, 382, 416, 437, 519, 548, 613, 647, 705, 742, 807, 905 |
| Page generated | July 2026 |
| Weather data | Open-Meteo (open-source), Environment and Climate Change Canada |
About This St. Catharines, Ontario Weather Page
This page provides live weather conditions and forecasts for St. Catharines, Ontario, 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 St. Catharines includes coordinates 43.165440°N, 79.253300°W, situated in Niagara. Postal FSA: L2W. Telephone area code: 226, 249, 289, 343, 365, 382, 416, 437, 519, 548, 613, 647, 705, 742, 807, 905. 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.