Cotnam Island, Ontario Weather
Cotnam Island, 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 Cotnam Island in Renfrew.
Marine forecast and fishing conditions near Cotnam Island.
Flight conditions near Cotnam Island. Data source: locating…
Soil conditions, frost risk and crop weather for Cotnam Island.
About Cotnam Island, Ontario
Cotnam Island is a locality in Renfrew, Ontario, Canada. It is classified as a village / hamlet. Cotnam Island is located at 45.7989°N, 77.0319°W. It observes Eastern Time (UTC−5 / −4). Postal code area: K8B.
Cotnam Island sits low and persistent against the sprawling expanse of Lower Allumette Lake, a sliver of earth defined by the patient weight of the nearby Meath Hill. It lies 6.6 km east-south-east of Pembroke, ON (from Pembroke, ON: bearing 111°T), and is situated 15.6 km west-north-west of Beachburg. The land here holds the silence of the Canadian Shield, where the light at dusk bruises the water into a deep, bruised violet, catching the reeds in a sharp, metallic glint. To the west, the horizon feels pulled toward the presence of Westmeath Provincial Park, while the air carries a crisp, thin clarity that suggests the proximity of the Indian River, winding its way through the quiet brush some 7 km away. The ground itself is stubborn and thick, clinging to the water’s edge with a tenacity that makes the island appear as if it might drift away, yet it remains anchored, a singular point of resistance in the slow, glacial movement of the surrounding basin. The history of Cotnam Island lingers in the seasonal shifts of the local economy, where the land and the water dictate the pulse of human activity far more than any clock. While the thunderous energy of the Chutes de la Rivière Noire lies 16 km distant, the island keeps a more muted, industrious pace, rooted in the legacy of those who first read the currents of these waterways. Life here turns on the practicalities of the season, from the maintenance of shoreline access to the quiet observation of the ice as it thickens or breaks. There is a distinct, solitary dignity to the way the days pass, marked by the call of birds and the shifting shadows of the clouds against the slope of the land, providing a sense of permanence that outlasts the brief, flickering hum of modern transit.
Live animated radar for Cotnam Island 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 | Cotnam Island, Renfrew, Ontario |
| Coordinates | 45.798889°N, 77.031944°W |
| Timezone | Eastern Time (UTC−5 / −4) |
| Postal FSA | K8B |
| 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 Cotnam Island, Ontario Weather Page
This page provides live weather conditions and forecasts for Cotnam Island, 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 Cotnam Island includes coordinates 45.798889°N, 77.031944°W, situated in Renfrew. Postal FSA: K8B. 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.