Bay Catharines
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Bay Catharines Live Precipitation Radar
Full Screen ViewBay Catharines Live Doppler RadarMSC Dual-Pol
Bay Catharines, ON • Lat: 42.13° N, Lon: 93.99° W • Sweep 10m
Bay Catharines 30-Year Weather History & Monthly Averages
Explore month-by-month temperatures, annual snowfall in cm, rainy days, and historical record highs and lows.
Bay Catharines 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 Bay Catharines, ON
What is the current temperature and conditions in Bay Catharines?
As of today, the temperature in Bay Catharines is 22.9°C with overcast. The apparent temperature (feels like) is 25.3°C with relative humidity at 89%.
How does Wind Chill and Humidex affect Bay Catharines?
During warmer conditions, the Canadian Humidex indicates comfort levels. The current Humidex is 30 (Noticeable Discomfort).
What is the Air Quality Health Index (AQHI) for Bay Catharines?
The current AQHI for Bay Catharines 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 Bay Catharines 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.