London Sector 3
No need to modify usual outdoor activities unless you experience symptoms such as coughing or throat irritation.
London Sector 3 Live Precipitation Radar
Full Screen ViewLondon Sector 3 Live Doppler RadarMSC Dual-Pol
London Sector 3, ON • Lat: 42.50° N, Lon: 75.41° W • Sweep 10m
London Sector 3 30-Year Weather History & Monthly Averages
Explore month-by-month temperatures, annual snowfall in cm, rainy days, and historical record highs and lows.
London Sector 3 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 London Sector 3, ON
What is the current temperature and conditions in London Sector 3?
As of today, the temperature in London Sector 3 is 19.8°C with heavy rain. The apparent temperature (feels like) is 22.4°C with relative humidity at 94%.
How does Wind Chill and Humidex affect London Sector 3?
During warmer conditions, the Canadian Humidex indicates comfort levels. The current Humidex is 20 (Comfortable).
What is the Air Quality Health Index (AQHI) for London Sector 3?
The current AQHI for London Sector 3 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 London Sector 3 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.