Fourth Line, Ontario Weather
Fourth Line, 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 Fourth Line in Lambton.
Marine forecast and fishing conditions near Fourth Line.
Flight conditions near Fourth Line. Data source: locating…
Soil conditions, frost risk and crop weather for Fourth Line.
About Fourth Line, Ontario
Fourth Line is a locality in Lambton, Ontario, Canada. It is classified as a village / hamlet. Fourth Line is located at 42.9599°N, 82.3219°W. It observes Eastern Time (UTC−5 / −4). Postal code area: N7W.
Fourth Line stretches across the flat, fertile expanses of Lambton, where the horizon holds a heavy, wide-open clarity that defines the local sky. It lies 2.4 km south of Sarnia, ON (from Sarnia, ON: bearing 188°T), and is situated 9.7 km south-west of Brights Grove. Under this vast dome, the land maintains a steady, industrious stillness, punctuated only by the distant, shallow breath of the Wawanosh Wetlands Conservation Area located just a few kilometres away. During the golden hour, the light pools across the fields with a syrupy weight, turning the dust of the road into a fine, shimmering haze that clings to the stalks of late-season crops. While the distant Lake Chipican sits eight kilometres to the west, the air here retains a crisp, inland quality, smelling faintly of turned earth and the impending shift of the seasons. The history of Fourth Line reflects the perseverance of those who first broke this heavy soil, establishing a legacy of agricultural endurance that persists in the modern economy. Local life moves according to the demands of the harvest and the maintenance of the homesteads, a tradition that keeps the pace of Fourth Line grounded in the practicalities of the land. Far to the southeast, the Bonnie Doon Creek winds its way through the landscape, serving as a quiet, flowing reminder of the natural hydrology that sustains the broader region. Residents here value a certain quietude, finding beauty in the stark, functional architecture of barns and the sturdy, unadorned character of the houses that stand as solitary sentinels against the wind.
Live animated radar for Fourth Line 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 | Fourth Line, Lambton, Ontario |
| Coordinates | 42.95986°N, 82.32187°W |
| Timezone | Eastern Time (UTC−5 / −4) |
| Postal FSA | N7W |
| 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 Fourth Line, Ontario Weather Page
This page provides live weather conditions and forecasts for Fourth Line, 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 Fourth Line includes coordinates 42.959860°N, 82.321870°W, situated in Lambton. Postal FSA: N7W. 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.