Lac-Diane, Quebec — 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 Lac-Diane in Brownsburg-Chatham; Argenteuil.
Marine forecast and fishing conditions near Lac-Diane.
Flight conditions near Lac-Diane. Data source: locating…
Soil conditions, frost risk and crop weather for Lac-Diane.
Lac-Diane is a residential area in Brownsburg-Chatham; Argenteuil, Quebec, Canada. It is classified as a small locality. Lac-Diane is located at 45.6897°N, 74.3975°W. It observes Eastern Time (UTC−5 / −4). Postal code area: J8G.
Lac-Diane rests in a quiet fold of the landscape, defined by the steady presence of the Rivière de l'Est and the looming silhouette of the Mont Green. It lies 5.9 km north-west of Lachute, QC (from Lachute, QC: bearing 310°T), and is situated 1.7 km north-north-east of Brownsburg-Chatham. The waters of Lac-Diane mirror the shifting moods of the sky, catching the sharp, clear light of late afternoon as it slips behind the ridge of the Mont Green. Nearby, the presence of Lac à Campbell adds a secondary stillness to the terrain, a smaller basin held in the earth that reflects the surrounding hardwoods. The air here holds a distinct, cool weight, smelling of damp stone and the slow decay of autumn leaves, while the Rivière de l'Est exerts a persistent, low-frequency hum against the banks. Farther afield, the presence of Parc national d'Oka suggests the broader ecological reaches of the region, yet the immediate vicinity of Lac-Diane remains defined by its own contained, private geography. Life around Lac-Diane follows the pragmatic requirements of Brownsburg-Chatham, where the economy has long leaned into the rhythms of rural industry and the management of timbered slopes. The history of the locality sits lightly upon the ground, marked by the persistent clearing of fields and the maintenance of access roads that track the uneven contours of the hills. Residents carry on with a focused diligence, their daily movements shaped by the incline of the Mont Green and the seasonal navigation of the Rivière de l'Est. There is a perceptible austerity to the work here, a preference for the solid utility of wood and stone that ensures Lac-Diane maintains its character as a place of deliberate, quiet endurance.
Lac-Diane s'étire dans une langueur contemplative, blotti contre les flancs du Mont Green qui protège ses eaux des vents dominants. La lumière déclinante du soir glisse sur la surface du plan d'eau, révélant une quiétude héritée des temps anciens où les colons, attirés par la fertilité des terres argenteuilloises, ont bâti leurs premiers foyers. À proximité, la Rivière de l'Est serpente avec une régularité apaisante, alimentant ce bassin versant qui sculpte la topographie locale depuis des éons. Le Lac à Campbell se dissimule à peine à deux kilomètres, formant avec Lac-Diane un duo de miroirs sombres sous la voûte céleste. Tandis que l'ombre du Mont Green s'allonge sur les propriétés, le silence se fait dense, interrompu seulement par le souffle léger qui anime les cimes. L'éloignement relatif du Parc national d'Oka, situé à trente-sept kilomètres, préserve ce secteur d'une agitation superflue, maintenant intacte une manière de vivre tournée vers l'observation des rythmes naturels. Ici, l'histoire se lit dans la pierre des fondations et dans la patience des arbres qui surplombent les rives, offrant à Lac-Diane une présence discrète mais indélébile dans le paysage vallonné qui définit le caractère unique de cette terre québécoise.
Live animated radar for Lac-Diane 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 | Lac-Diane, Brownsburg-Chatham; Argenteuil, Quebec |
| Coordinates | 45.689722°N, 74.3975°W |
| Timezone | Eastern Time (UTC−5 / −4) |
| Postal FSA | J8G |
| Area Code | 263, 354, 367, 418, 438, 450, 514, 579, 581, 819, 873 |
| Page generated | July 2026 |
| Weather data | Open-Meteo (open-source), Environment and Climate Change Canada |
This page provides live weather conditions and forecasts for Lac-Diane, Quebec, 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 Lac-Diane includes coordinates 45.689722°N, 74.397500°W, situated in Brownsburg-Chatham; Argenteuil. Postal FSA: J8G. Telephone area code: 263, 354, 367, 418, 438, 450, 514, 579, 581, 819, 873. 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.