Macdiarmid, Ontario Weather
Macdiarmid, 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 Macdiarmid in Thunder Bay.
Marine forecast and fishing conditions near Macdiarmid.
Flight conditions near Macdiarmid. Data source: locating…
Soil conditions, frost risk and crop weather for Macdiarmid.
About Macdiarmid, Ontario
Macdiarmid is a compact rural community in Thunder Bay, Ontario, Canada. It is classified as a town. Macdiarmid is located at 49.4339°N, 88.1294°W. It observes Eastern Time (UTC−5 / −4). Postal code area: P0T.
Macdiarmid rests upon the rugged, rising contours of the Macdiarmid Hill, overlooking the vast and deep waters of Lake Nipigon. It lies 48.0 km north-north-east of Nipigon, ON (from Nipigon, ON: bearing 12°T), and is situated 2.7 km south of Farlinger. The Postagoni River winds toward the lake, carving a path through the boreal terrain where the air holds the sharp, resinous scent of spruce and cold stone. When the low sun strikes the surface of Lake Nipigon, the water turns a bruised, metallic violet, casting a long shadow that climbs the slopes of the Macdiarmid Hill. Visitors often find themselves drawn toward the nearby Virgin Falls, where the movement of water provides a constant, low-frequency hum against the stillness of the woods. Just a short distance away, the quiet boundaries of Lake Nipigon Provincial Park offer a sanctuary of dense timber and moss, grounding the landscape in a stillness that feels ancient and undisturbed. Macdiarmid carries the weight of a northern history defined by its proximity to the water and the seasonal cycles of the land. The economy here has long mirrored the shifts of the forest and the lake, with generations finding their livelihood in the harvesting of resources that the surrounding geography provides. Life in Macdiarmid moves with the clarity of a northern winter, where the community functions in alignment with the demands of the terrain rather than the clock. The traditions here are quiet, held in the calloused hands of those who know how to navigate the Postagoni River or prepare for the deep freeze that settles over the shoreline. Even as the modern world shifts, the daily existence of those residing near Lake Nipigon Provincial Park remains defined by a profound, watchful engagement with the wild, unyielding earth.
Live animated radar for Macdiarmid 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 | Macdiarmid, Thunder Bay, Ontario |
| Coordinates | 49.433889°N, 88.129444°W |
| Timezone | Eastern Time (UTC−5 / −4) |
| Postal FSA | P0T |
| 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 Macdiarmid, Ontario Weather Page
This page provides live weather conditions and forecasts for Macdiarmid, 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 Macdiarmid includes coordinates 49.433889°N, 88.129444°W, situated in Thunder Bay. Postal FSA: P0T. 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.