Lower St. Thomas
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Lower St. Thomas Live Precipitation Radar
Full Screen ViewLower St. Thomas Live Doppler RadarMSC Dual-Pol
Lower St. Thomas, ON • Lat: 45.74° N, Lon: 83.88° W • Sweep 10m
Lower St. Thomas 30-Year Weather History & Monthly Averages
Explore month-by-month temperatures, annual snowfall in cm, rainy days, and historical record highs and lows.
Lower St. Thomas 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 Lower St. Thomas, ON
What is the current temperature and conditions in Lower St. Thomas?
As of today, the temperature in Lower St. Thomas is 15.6°C with clear sky. The apparent temperature (feels like) is 14.3°C with relative humidity at 68%.
How does Wind Chill and Humidex affect Lower St. Thomas?
During warmer conditions, the Canadian Humidex indicates comfort levels. The current Humidex is 16 (Comfortable).
What is the Air Quality Health Index (AQHI) for Lower St. Thomas?
The current AQHI for Lower St. Thomas 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 Lower St. Thomas 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.