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St. Thomas, Ontario Weather

St. Thomas, 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. Thomas in Elgin.

🌡️ Current Conditions
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24-Hour Forecast
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Current Conditions Detail
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7-Day Forecast
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ECCC Extended Forecast
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🌊 Marine & Fishing

Marine forecast and fishing conditions near St. Thomas.

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🎣 Best times to fish today (solunar)
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✈️ Aviation Weather

Flight conditions near St. Thomas. Data source: locating…

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🌿 Air Quality
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About St. Thomas, Ontario

St. Thomas is a city in Elgin, Ontario, Canada. It has a population of 42,840. St. Thomas is located at 42.7808°N, 81.1856°W. It observes Eastern Time (UTC−5 / −4). Postal code area: N5P.

St. Thomas occupies a settled stretch of land defined by the quiet presence of the earth and the nearby reach of the natural world. It lies 21.1 km south of London, ON (from London, ON: bearing 170°T), and is situated 12.9 km north of Port Stanley. The terrain surrounding St. Thomas holds a stillness that deepens as the light slants low against the fields, casting long, deliberate shadows that emphasize the horizon. To the north, the Thames River flows with a persistent, steady purpose, while the closer stillness of Pinafore Lake offers a mirror to the sky, catching the pale gold of late afternoons. Nearby, the Dalewood Conservation Area protects a pocket of quiet woodland where the air feels heavier with the scent of damp soil and ancient growth, grounding the outskirts of St. Thomas in a landscape that feels both managed and wild. The history of St. Thomas rests upon the iron and steam of a bygone era, when the clatter of rail lines defined the promise of growth and movement. Once a vital hub for regional industry, St. Thomas saw its economy shaped by the demands of the tracks and the industrious spirit of those who kept the engines turning. Today, the remnants of that mechanical heritage linger in the sturdy brickwork of the older districts, where the architecture remembers a time of soot and ambition. While the character of modern industry has shifted toward new ventures, the spirit of the place remains fixed on a practical, hardworking resilience that draws its strength from the fertile ground of the surrounding region. The cultural identity of St. Thomas reflects a balance between the traditions of the past and the quiet persistence of its residents. Within the local gatherings, one finds a steady, unassuming pride in the landmarks that dot the streets, serving as touchstones for those who have called St. Thomas home for generations. The atmosphere is marked by the deliberate pace of daily life, where the seasons dictate the mood of the streets more than any fleeting trend. Whether through the seasonal traditions that draw neighbors together or the simple enjoyment of a morning walk near the calm waters of Pinafore Lake, the people of St. Thomas maintain a way of life that values the tangible over the ephemeral, keeping their focus on the immediate beauty of their own surroundings.

📡 Precipitation Radar

Live animated radar for St. Thomas and surroundings — RainViewer.

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🛰️ Satellite Imagery

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.

NOAA GOES-19 GEOCOLOR — Canada / Northern U.S. sector
🎬 Animated loop 🔍 Higher resolution (1125×560) 🌡️ Infrared (IR) view 🇨🇦 ECCC Satellite Viewer

Source: NOAA/NESDIS GOES-19 · Public domain · Sector code can (Canada / Northern U.S.) · Auto-updates on page reload

🌙 Astronomy
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LocationSt. Thomas, Elgin, Ontario
Coordinates42.780833°N, 81.185556°W
TimezoneEastern Time (UTC−5 / −4)
Postal FSAN5P
Area Code226, 249, 289, 343, 365, 382, 416, 437, 519, 548, 613, 647, 705, 742, 807, 905
Page generatedJuly 2026
Weather dataOpen-Meteo (open-source), Environment and Climate Change Canada

About This St. Thomas, Ontario Weather Page

This page provides live weather conditions and forecasts for St. Thomas, 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. Thomas includes coordinates 42.780833°N, 81.185556°W, situated in Elgin. Postal FSA: N5P. 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.