Williamstown, Ontario Weather

Marine forecast and fishing conditions near Williamstown.

Flight conditions near Williamstown. Data source: locating…

Soil conditions, frost risk and crop weather for Williamstown.

About Williamstown, Ontario

Williamstown is a compact rural community in Glengarry, Ontario, Canada. It is classified as a village / hamlet. Williamstown is located at 45.1469°N, 74.5800°W. It observes Eastern Time (UTC−5 / −4). Postal code area: K6H.

Williamstown rests upon a landscape defined by the steady, persistent presence of the South Raisin River. It lies 17.7 km north-east of Cornwall, ON (from Cornwall, ON: bearing 41°T), and is situated 12.4 km south of Green Valley. The air here holds a particular clarity, especially near the Sandy Hill where the light at dusk settles in long, amber layers against the fields. While Lake St. Francis waits twelve kilometres away, the immediate horizon is shaped by the low, quiet reach of the land leading toward the Hudson Bay. The terrain carries a modest, open character, where the wind moves across the grass with a visible weight, pressing against the reeds and the riverbanks in a way that makes the silence feel deliberate and heavy. Williamstown grew from the ambitions of early settlers who recognized the potential in the fertile, dark earth and the reliable flow of the South Raisin River. Today, the local economy keeps a steady, quiet pace, drawing its strength from agricultural traditions that have persisted for generations. Visitors often find themselves drawn to the historic architecture that marks the village, a collection of stone and wood that stands as a physical record of those who first cleared the timber. In the late afternoon, the movement of people going about their chores feels like a slow, synchronized dance, anchored by a deep familiarity with the seasons and the cycle of the frost.

Live animated radar for Williamstown 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

About This Williamstown, Ontario Weather Page

This page provides live weather conditions and forecasts for Williamstown, 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 Williamstown includes coordinates 45.146944°N, 74.580000°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.