Chestnut Hills, Ontario Weather
Chestnut Hills, 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 Chestnut Hills in York.
Marine forecast and fishing conditions near Chestnut Hills.
Flight conditions near Chestnut Hills. Data source: locating…
Soil conditions, frost risk and crop weather for Chestnut Hills.
About Chestnut Hills, Ontario
Chestnut Hills is a urban community in York, Ontario, Canada. It is classified as a small locality. Chestnut Hills is located at 43.6597°N, 79.5231°W. It observes Eastern Time (UTC−5 / −4). Postal code area: M9A.
Chestnut Hills sits with a quiet gravity along the banks of the Humber River, where the land holds the memory of ancient water-carved paths. It lies 13.6 km north-east of Mississauga, ON (from Mississauga, ON: bearing 53°T), and is situated 15.1 km south-west of Toronto. The terrain here possesses a sturdy, grounded character, defined by the steady, persistent pull of the river as it moves through the deepening afternoon light. In the low, slanting sun of late autumn, the shadows stretch across the fields, revealing a subtle, textured topography that feels both aged and expectant. Air in Chestnut Hills carries a crisp, clean clarity, often smelling of damp earth and the cooling currents rising from the riverbed. The history of Chestnut Hills reflects a steady transition from agricultural origins to the modern, industrious pace that defines the wider region. While distant landmarks like the Claireville Reservoir, located 12 km away, and the Parc urbain national du Canada de la Rouge, 38 km away, serve as reminders of the broader geography, the local focus remains on the immediate surroundings and the practical demands of daily life. The economy here moves with a pragmatic focus, supporting a population that values the intersection of accessibility and the presence of the Humber River. Residents move through their days with a quiet purpose, their routines shaped by the proximity of the water and the persistent, low-frequency hum of industry that anchors the local identity.
Live animated radar for Chestnut Hills 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 | Chestnut Hills, York, Ontario |
| Coordinates | 43.659722°N, 79.523056°W |
| Timezone | Eastern Time (UTC−5 / −4) |
| Postal FSA | M9A |
| 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 Chestnut Hills, Ontario Weather Page
This page provides live weather conditions and forecasts for Chestnut Hills, 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 Chestnut Hills includes coordinates 43.659722°N, 79.523056°W, situated in York. Postal FSA: M9A. 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.