Stewartville, Ontario Weather
Stewartville, 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 Stewartville in Renfrew.
Marine forecast and fishing conditions near Stewartville.
Flight conditions near Stewartville. Data source: locating…
Soil conditions, frost risk and crop weather for Stewartville.
About Stewartville, Ontario
Stewartville is a locality in Renfrew, Ontario, Canada. It is classified as a village / hamlet. Stewartville is located at 45.4096°N, 76.5013°W. It observes Eastern Time (UTC−5 / −4). Postal code area: K7S.
Stewartville rests in a quiet fold of the land, defined by the steady, dark presence of the Madawaska River as it winds near the slopes of the Madawaska Hill. It lies 11.5 km west-south-west of Arnprior, ON (from Arnprior, ON: bearing 256°T), and is situated 15.8 km east-south-east of Renfrew. The air here holds a distinct, cool weight, particularly at dusk when the light thins into a bruised violet across the fields, casting the river’s surface into a mirror of polished slate. Beyond the immediate reach of the water, the terrain rises with a stubborn, rocky persistence that marks the transition toward more rugged ground. To the west, the landscape is punctuated by the presence of McLachlan Lake, a pocket of stillness seven kilometres away, while further out, the expanse of the Morris Island Conservation Area waits eighteen kilometres distant, preserving a wilder, untamed character within the regional geography. The development of Stewartville emerged from a reliance on the water, drawing its early energy from the flow of the Madawaska River that once moved timber and powered the machinery of settlement. Industry here has long mirrored the changing demands of the valley, moving from the demands of early milling to the current, quieter pace of rural life where the economy remains tied to the land and the endurance of its inhabitants. Life in Stewartville follows the seasonal pulse of the region, where the work of the day is measured by the sun’s arc over the hill and the persistent, low hum of the current. It is a location where the past survives in the foundations of old buildings and the stoic, measured interactions of those who call this stretch of the river home.
Live animated radar for Stewartville 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 | Stewartville, Renfrew, Ontario |
| Coordinates | 45.40959°N, 76.50132°W |
| Timezone | Eastern Time (UTC−5 / −4) |
| Postal FSA | K7S |
| 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 Stewartville, Ontario Weather Page
This page provides live weather conditions and forecasts for Stewartville, 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 Stewartville includes coordinates 45.409590°N, 76.501320°W, situated in Renfrew. Postal FSA: K7S. 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.