Ottawa South, Ontario Weather
Ottawa South, 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 Ottawa South in Carleton.
Marine forecast and fishing conditions near Ottawa South.
Flight conditions near Ottawa South. Data source: locating…
Soil conditions, frost risk and crop weather for Ottawa South.
About Ottawa South, Ontario
Ottawa South is a urban community in Carleton, Ontario, Canada. It is classified as a small locality. Ottawa South is located at 45.3921°N, 75.6873°W. It observes Eastern Time (UTC−5 / −4). Postal code area: K1S.
Ottawa South holds a quiet prominence within the elevated rise of Nanny Goat Hill, where the land tilts toward the steady pull of the Rideau River. It lies 4.4 km south-south-east of Gatineau, ON (from Gatineau, ON: bearing 155°T), and is situated 10.4 km north-west of Ottawa. The air here carries a crisp, lingering dampness from the water, cooling the brow of the hill even as the sun begins to fade behind the distant tree lines. Residents move along the sloping streets with a familiarity born of long winters and the sharp, bright clarity of autumn light that catches on the brickwork of older homes. Dow's Lake sits just a short distance away, its surface often mirroring the changing moods of the sky, while the movement of the terrain toward the Prince of Wales Falls adds a rhythmic, downward momentum to the local topography. The history of Ottawa South remains anchored in the development of Carleton, where the influence of academic life and institutional growth has shaped the local economy. Scholars and students brush shoulders with long-time residents in small shops and cafes, creating a distinct social temperature that feels both studious and neighborly. The presence of the university nearby acts as a steady heartbeat for the district, drawing in a constant flow of new energy that balances the settled, enduring nature of the neighborhoods bordering the water. On quiet evenings, the distant, muffled sound of the Rideau River provides a grounding presence, reminding everyone in Ottawa South of the ancient, persistent flow that continues to define the edges of their home.
Live animated radar for Ottawa South 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 | Ottawa South, Carleton, Ontario |
| Coordinates | 45.3921°N, 75.68725°W |
| Timezone | Eastern Time (UTC−5 / −4) |
| Postal FSA | K1S |
| 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 Ottawa South, Ontario Weather Page
This page provides live weather conditions and forecasts for Ottawa South, 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 Ottawa South includes coordinates 45.392100°N, 75.687250°W, situated in Carleton. Postal FSA: K1S. 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.