Perth
No need to modify usual outdoor activities unless you experience symptoms such as coughing or throat irritation.
Perth Live Precipitation Radar
Full Screen ViewPerth Live Doppler RadarMSC Dual-Pol
Perth, ON • Lat: 46.45° N, Lon: 94.72° W • Sweep 10m
Perth 30-Year Weather History & Monthly Averages
Explore month-by-month temperatures, annual snowfall in cm, rainy days, and historical record highs and lows.
Perth 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 Perth, ON
What is the current temperature and conditions in Perth?
As of today, the temperature in Perth is 15.4°C with overcast. The apparent temperature (feels like) is 16.1°C with relative humidity at 93%.
How does Wind Chill and Humidex affect Perth?
During warmer conditions, the Canadian Humidex indicates comfort levels. The current Humidex is 15 (Comfortable).
What is the Air Quality Health Index (AQHI) for Perth?
The current AQHI for Perth 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 Perth 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.