Island Cornwall
No need to modify usual outdoor activities unless you experience symptoms such as coughing or throat irritation.
Island Cornwall Live Precipitation Radar
Full Screen ViewIsland Cornwall Live Doppler RadarMSC Dual-Pol
Island Cornwall, ON • Lat: 42.75° N, Lon: 78.03° W • Sweep 10m
Island Cornwall 30-Year Weather History & Monthly Averages
Explore month-by-month temperatures, annual snowfall in cm, rainy days, and historical record highs and lows.
Island Cornwall 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 Island Cornwall, ON
What is the current temperature and conditions in Island Cornwall?
As of today, the temperature in Island Cornwall is 22.5°C with overcast. The apparent temperature (feels like) is 24.6°C with relative humidity at 75%.
How does Wind Chill and Humidex affect Island Cornwall?
During warmer conditions, the Canadian Humidex indicates comfort levels. The current Humidex is 28 (Comfortable).
What is the Air Quality Health Index (AQHI) for Island Cornwall?
The current AQHI for Island Cornwall is 5 (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 Island Cornwall 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.