Alliston Sector 51
Ideal air quality for outdoor Canadian activities and sports.
Alliston Sector 51 Live Precipitation Radar
Full Screen ViewAlliston Sector 51 Live Doppler RadarMSC Dual-Pol
Alliston Sector 51, ON • Lat: 51.45° N, Lon: 77.51° W • Sweep 10m
Alliston Sector 51 30-Year Weather History & Monthly Averages
Explore month-by-month temperatures, annual snowfall in cm, rainy days, and historical record highs and lows.
Alliston Sector 51 Air Quality & Wildfire Smoke Report
Detailed Canadian AQHI breakdown, fine particulate matter (PM2.5), ground-level ozone, and health guidance.
Frequently Asked Questions About Weather in Alliston Sector 51, ON
What is the current temperature and conditions in Alliston Sector 51?
As of today, the temperature in Alliston Sector 51 is 11.6°C with partly cloudy. The apparent temperature (feels like) is 8.5°C with relative humidity at 62%.
How does Wind Chill and Humidex affect Alliston Sector 51?
During warmer conditions, the Canadian Humidex indicates comfort levels. The current Humidex is 12 (Comfortable).
What is the Air Quality Health Index (AQHI) for Alliston Sector 51?
The current AQHI for Alliston Sector 51 is 3 (Low Risk). It is calculated based on ground-level ozone, fine particulate matter (PM2.5), and nitrogen dioxide levels according to Health Canada standards.
Where does the meteorological data for Alliston Sector 51 come from?
Forecasts are generated using high-resolution Canadian Deterministic Prediction System (HRDPS 2.5km) and Global Environmental Multiscale (GEM) models alongside official Environment and Climate Change Canada Doppler radar feeds.