Cornwallville
Ideal air quality for outdoor Canadian activities and sports.
Cornwallville Live Precipitation Radar
Full Screen ViewCornwallville Live Doppler RadarMSC Dual-Pol
Cornwallville, ON • Lat: 45.03° N, Lon: 88.40° W • Sweep 10m
Cornwallville 30-Year Weather History & Monthly Averages
Explore month-by-month temperatures, annual snowfall in cm, rainy days, and historical record highs and lows.
Cornwallville 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 Cornwallville, ON
What is the current temperature and conditions in Cornwallville?
As of today, the temperature in Cornwallville is 17.2°C with clear sky. The apparent temperature (feels like) is 18.3°C with relative humidity at 78%.
How does Wind Chill and Humidex affect Cornwallville?
During warmer conditions, the Canadian Humidex indicates comfort levels. The current Humidex is 17 (Comfortable).
What is the Air Quality Health Index (AQHI) for Cornwallville?
The current AQHI for Cornwallville 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 Cornwallville 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.