London
No need to modify usual outdoor activities unless you experience symptoms such as coughing or throat irritation.
London Live Precipitation Radar
Full Screen ViewLondon Live Doppler RadarMSC Dual-Pol
London, ON • Lat: 42.98° N, Lon: 81.25° W • Sweep 10m
London 30-Year Weather History & Monthly Averages
Explore month-by-month temperatures, annual snowfall in cm, rainy days, and historical record highs and lows.
London 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, ON
What is the current temperature and conditions in London?
As of today, the temperature in London is 19.5°C with overcast. The apparent temperature (feels like) is 21.5°C with relative humidity at 85%.
How does Wind Chill and Humidex affect London?
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?
The current AQHI for London 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 London 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.