Clear Alliston
No need to modify usual outdoor activities unless you experience symptoms such as coughing or throat irritation.
Clear Alliston Live Precipitation Radar
Full Screen ViewClear Alliston Live Doppler RadarMSC Dual-Pol
Clear Alliston, ON • Lat: 50.61° N, Lon: 85.80° W • Sweep 10m
Clear Alliston 30-Year Weather History & Monthly Averages
Explore month-by-month temperatures, annual snowfall in cm, rainy days, and historical record highs and lows.
Clear Alliston 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 Clear Alliston, ON
What is the current temperature and conditions in Clear Alliston?
As of today, the temperature in Clear Alliston is 15.7°C with mainly sunny. The apparent temperature (feels like) is 10.8°C with relative humidity at 44%.
How does Wind Chill and Humidex affect Clear Alliston?
During warmer conditions, the Canadian Humidex indicates comfort levels. The current Humidex is 16 (Comfortable).
What is the Air Quality Health Index (AQHI) for Clear Alliston?
The current AQHI for Clear Alliston 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 Clear Alliston 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.