Keswick, Ontario Weather
Keswick, 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 Keswick in York.
Marine forecast and fishing conditions near Keswick.
Flight conditions near Keswick. Data source: locating…
Soil conditions, frost risk and crop weather for Keswick.
About Keswick, Ontario
Keswick is a compact rural community in York, Ontario, Canada. It is classified as a town. Keswick is located at 44.2436°N, 79.4758°W. It observes Eastern Time (UTC−5 / −4). Postal code area: L4P.
Keswick rests upon the southern shore of Lake Simcoe, where the horizon dissolves into a silver expanse of water and sky. It lies 20.7 km north of Newmarket, ON (from Newmarket, ON: bearing 356°T), and is situated 12.7 km west-south-west of Georgina. The Maskinonge (Jersey) River winds slowly toward the lake, its dark current holding the deep, quiet reflections of the surrounding trees as it passes near the rise of Little Hell Hill. In the late afternoon, the light turns a bruised gold, catching the reeds and softening the edges of the land until the boundary between water and earth feels thin and permeable. While the bustle of the modern world persists, the quiet presence of Parc urbain national du Canada de la Rouge remains a distant reference point some forty kilometers away, leaving Keswick to its own distinct, waterside stillness. The history of Keswick anchors itself in the navigation of these waterways, which once served as the arteries for local trade and early settlement. Today, the economy of Keswick balances between its legacy as a seasonal retreat for those drawn to the lake and its role as a residential anchor within the region. Life in Keswick follows the shifting moods of Lake Simcoe, where the air carries a persistent, bracing dampness even in the height of summer. The people here move with a deliberate pace, their habits shaped by the open sky above the Maskinonge (Jersey) River and the enduring, stoic character of a landscape that prioritizes the water’s edge above all else.
Live animated radar for Keswick 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 | Keswick, York, Ontario |
| Coordinates | 44.243611°N, 79.475833°W |
| Timezone | Eastern Time (UTC−5 / −4) |
| Postal FSA | L4P |
| 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 Keswick, Ontario Weather Page
This page provides live weather conditions and forecasts for Keswick, 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 Keswick includes coordinates 44.243611°N, 79.475833°W, situated in York. Postal FSA: L4P. 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.