Old Perth
No need to modify usual outdoor activities unless you experience symptoms such as coughing or throat irritation.
Old Perth Live Precipitation Radar
Full Screen ViewOld Perth Live Doppler RadarMSC Dual-Pol
Old Perth, ON • Lat: 53.06° N, Lon: 92.43° W • Sweep 10m
Old Perth 30-Year Weather History & Monthly Averages
Explore month-by-month temperatures, annual snowfall in cm, rainy days, and historical record highs and lows.
Old 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 Old Perth, ON
What is the current temperature and conditions in Old Perth?
As of today, the temperature in Old Perth is 9°C with clear sky. The apparent temperature (feels like) is 4.4°C with relative humidity at 60%.
How does Wind Chill and Humidex affect Old Perth?
During warmer conditions, the Canadian Humidex indicates comfort levels. The current Humidex is 9 (Comfortable).
What is the Air Quality Health Index (AQHI) for Old Perth?
The current AQHI for Old 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 Old 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.