South Mountain, Ontario Weather
South Mountain, 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 Mountain in Dundas.
Marine forecast and fishing conditions near South Mountain.
Flight conditions near South Mountain. Data source: locating…
Soil conditions, frost risk and crop weather for South Mountain.
About South Mountain, Ontario
South Mountain is a compact rural community in Dundas, Ontario, Canada. It is classified as a town. South Mountain is located at 44.9912°N, 75.4507°W. It observes Eastern Time (UTC−5 / −4). Postal code area: K0E.
South Mountain rests as a quiet presence upon the landscape, defined by its proximity to the modest rise of Hyndmans Ridge and the steady, persistent flow of the South Nation River. It lies 19.2 km north-north-west of Iroquois, ON (from Iroquois, ON: bearing 327°T), and is situated 13.6 km south-west of Winchester. The air here holds a particular clarity at dusk, when the low sun casts long, amber shadows across the fields and draws a thin, silver mist off the water that softens the hard edges of the horizon. This terrain possesses a stillness that invites one to notice the subtle transitions in the earth, where the land yields to the influence of the river’s ancient, winding course. Within this geography, South Mountain maintains a character shaped by the open sky and the patient, enduring nature of the surrounding fields. The historical identity of South Mountain persists through a heritage deeply linked to the rhythms of the South Nation River, which provided the original impetus for settlement and early industry. Agriculture continues to define the local economy, with the day-to-day life of the people mirroring the slow, seasonal turn of the crops that blanket the earth near Hyndmans Ridge. There is a distinct sincerity in how the residents attend to their daily tasks, a focus that honors the labor of those who first cleared these plots. Even now, the sound of the wind moving through the tall grass serves as a constant reminder of the vast, quiet space that South Mountain occupies within the broader reach of the countryside.
Live animated radar for South Mountain 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 Mountain, Dundas, Ontario |
| Coordinates | 44.99116°N, 75.45068°W |
| Timezone | Eastern Time (UTC−5 / −4) |
| Postal FSA | K0E |
| 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 Mountain, Ontario Weather Page
This page provides live weather conditions and forecasts for South Mountain, 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 Mountain includes coordinates 44.991160°N, 75.450680°W, situated in Dundas. Postal FSA: K0E. 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.