South Lancaster, Ontario Weather
South Lancaster, 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, soil and crop conditions for South Lancaster in Glengarry.
Marine forecast and fishing conditions near South Lancaster.
Flight conditions near South Lancaster. Data source: locating…
Soil conditions, frost risk and crop weather for South Lancaster.
About South Lancaster, Ontario
South Lancaster is a compact rural community in Glengarry, Ontario, Canada. It is classified as a village / hamlet. South Lancaster is located at 45.1303°N, 74.4892°W. It observes Eastern Time (UTC−5 / −4). Postal code area: K6H.
South Lancaster rests upon the low, steady horizon where the land meets the expansive reach of Lake St. Francis. It lies 21.9 km east-north-east of Cornwall, ON (from Cornwall, ON: bearing 58°T), and is situated 14.5 km north of Dundee. The Raisin River narrows and deepens as it nears the shore, pulling the cool, damp breath of the lake into the heart of the landscape. Near the Côte Saumier, the terrain flattens into a persistent, quiet openness that defines the character of South Lancaster. When the light shifts at dusk, the water takes on a heavy, metallic silver, catching the last of the sun before the shadow of the trees stretches across the fields. The air here holds a particular clarity, stripped clean by the winds moving across the open water, carrying the scent of damp earth and coming weather. Settlement in South Lancaster grew from the practical demands of a land defined by its access to water and the fertile, flat stretches of the surrounding countryside. The local economy relies on the long-standing rhythms of agriculture and the seasonal pulse of the lake, maintaining a relationship with the environment that values endurance over speed. Small landmarks dot the road, marking a history shaped by those who worked the riverbanks and the fields with consistent, measured effort. Life in South Lancaster follows the simple, recurring cycles of the seasons, where the presence of the Raisin River dictates the movement of the day and the quiet transition from the heat of summer into the long, silver-grey stillness of the colder months.
Live animated radar for South Lancaster 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 | South Lancaster, Glengarry, Ontario |
| Coordinates | 45.130278°N, 74.489167°W |
| Timezone | Eastern Time (UTC−5 / −4) |
| Postal FSA | K6H |
| 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 South Lancaster, Ontario Weather Page
This page provides live weather conditions and forecasts for South Lancaster, 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 South Lancaster includes coordinates 45.130278°N, 74.489167°W, situated in Glengarry. Postal FSA: K6H. 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.