Grassmere, Ontario Weather
Grassmere, 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 Grassmere in Muskoka.
Marine forecast and fishing conditions near Grassmere.
Flight conditions near Grassmere. Data source: locating…
Soil conditions, frost risk and crop weather for Grassmere.
About Grassmere, Ontario
Grassmere is a locality in Muskoka, Ontario, Canada. It is classified as a village / hamlet. Grassmere is located at 45.3647°N, 79.1131°W. It observes Eastern Time (UTC−5 / −4). Postal code area: P1H.
Grassmere sits quietly along the Big East River, where the water gathers the amber light of the setting sun and pulls it deep into the shadows of the surrounding woods. It lies 14.2 km east-north-east of Huntsville, ON (from Huntsville, ON: bearing 65°T), and is situated 8.8 km west-north-west of Dwight. The land holds a rugged, ancient composure, defined by the quiet presence of Fleming Lake resting just a short distance away. Here, the air carries a crisp, pine-scented weight that settles over the terrain, grounding the earth in a stillness that feels both heavy and light. When the winds shift, one can almost hear the distant, persistent pulse of Stubb’s Falls, a reminder of the water’s relentless journey through the hard, unyielding stone of the Canadian Shield. The history of Grassmere is marked by the industrious spirit of those who first cleared the timber and harnessed the flow of the river to carve out a living. While the economy has shifted away from the early days of logging and milling, the local identity remains defined by a deep-seated respect for the natural world and the seasonal cycles that dictate the pace of life. Residents move through their days with a steady, pragmatic grace, finding value in the solitude that the geography provides. Even now, the character of Grassmere is found in the modest, hardworking homes and the way the community maintains its connection to the river, ensuring that the legacy of the land is carried forward with a quiet, enduring pride.
Live animated radar for Grassmere 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 | Grassmere, Muskoka, Ontario |
| Coordinates | 45.364722°N, 79.113056°W |
| Timezone | Eastern Time (UTC−5 / −4) |
| Postal FSA | P1H |
| 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 Grassmere, Ontario Weather Page
This page provides live weather conditions and forecasts for Grassmere, 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 Grassmere includes coordinates 45.364722°N, 79.113056°W, situated in Muskoka. Postal FSA: P1H. 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.