Chelmsford, Ontario Weather
Chelmsford, 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 Chelmsford in Sudbury.
Marine forecast and fishing conditions near Chelmsford.
Flight conditions near Chelmsford. Data source: locating…
Soil conditions, frost risk and crop weather for Chelmsford.
About Chelmsford, Ontario
Chelmsford is a compact rural community in Sudbury, Ontario, Canada. It is classified as a town. Chelmsford is located at 46.5786°N, 81.1969°W. It observes Eastern Time (UTC−5 / −4). Postal code area: P3N.
Chelmsford rests upon the broad, fertile floor of a basin that holds the quiet weight of the northern shield. It lies 9.7 km west of Grand Sudbury, ON (from Grand Sudbury, ON: bearing 271°T), and is situated 9.7 km west of Greater Sudbury. The land here is defined by a low, persistent horizon, shadowed by the presence of Blueberry Hill which rises to catch the long, slanted light of late afternoon. Beyond the immediate fields, the Vermilion River carves a deliberate path through the earth, marking the land roughly 6 km away, while the expanse of Whitewater Lake sits 7 km distant, reflecting the cooling sky. Further afield, the rush of High Falls drops into the stillness 14 km from the centre, and the sheltered woods of Windy Lake Provincial Park offer a sanctuary 20 km out, grounding Chelmsford in a geography of deep, shadowed water and stone. The history of Chelmsford carries the persistent grit of agricultural roots and the industrial pulse of the surrounding region, where the work of generations has shaped the economy of the valley. Life in Chelmsford moves with the steady, predictable turning of the seasons, a cycle felt in the way the air thins and sharpens as winter approaches. The community maintains a distinct identity, one that values the endurance of its people and the quiet resilience required to thrive in this particular northern landscape. Whether through local gatherings or the quiet maintenance of the land, the inhabitants of Chelmsford sustain a connection to their surroundings that is as practical as it is profound, finding beauty in the stark, honest clarity of the northern light.
Live animated radar for Chelmsford 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 | Chelmsford, Sudbury, Ontario |
| Coordinates | 46.578611°N, 81.196945°W |
| Timezone | Eastern Time (UTC−5 / −4) |
| Postal FSA | P3N |
| 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 Chelmsford, Ontario Weather Page
This page provides live weather conditions and forecasts for Chelmsford, 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 Chelmsford includes coordinates 46.578611°N, 81.196945°W, situated in Sudbury. Postal FSA: P3N. 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.