Cornwall Sector 48
No need to modify usual outdoor activities unless you experience symptoms such as coughing or throat irritation.
Cornwall Sector 48 Live Precipitation Radar
Full Screen ViewCornwall Sector 48 Live Doppler RadarMSC Dual-Pol
Cornwall Sector 48, ON • Lat: 53.07° N, Lon: 74.51° W • Sweep 10m
Cornwall Sector 48 30-Year Weather History & Monthly Averages
Explore month-by-month temperatures, annual snowfall in cm, rainy days, and historical record highs and lows.
Cornwall Sector 48 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 Cornwall Sector 48, ON
What is the current temperature and conditions in Cornwall Sector 48?
As of today, the temperature in Cornwall Sector 48 is 8.4°C with overcast. The apparent temperature (feels like) is 4.7°C with relative humidity at 58%.
How does Wind Chill and Humidex affect Cornwall Sector 48?
During warmer conditions, the Canadian Humidex indicates comfort levels. The current Humidex is 8 (Comfortable).
What is the Air Quality Health Index (AQHI) for Cornwall Sector 48?
The current AQHI for Cornwall Sector 48 is 4 (Moderate 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 Cornwall Sector 48 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.