St. Stephen
Ideal air quality for outdoor Canadian activities and sports.
St. Stephen Live Precipitation Radar
Full Screen ViewSt. Stephen Live Doppler RadarMSC Dual-Pol
St. Stephen, NB • Lat: 45.82° N, Lon: 68.35° W • Sweep 10m
St. Stephen 30-Year Weather History & Monthly Averages
Explore month-by-month temperatures, annual snowfall in cm, rainy days, and historical record highs and lows.
St. Stephen 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 St. Stephen, NB
What is the current temperature and conditions in St. Stephen?
As of today, the temperature in St. Stephen is 18.5°C with overcast. The apparent temperature (feels like) is 18°C with relative humidity at 58%.
How does Wind Chill and Humidex affect St. Stephen?
During warmer conditions, the Canadian Humidex indicates comfort levels. The current Humidex is 19 (Comfortable).
What is the Air Quality Health Index (AQHI) for St. Stephen?
The current AQHI for St. Stephen is 3 (Low 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 St. Stephen 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.