River Newmarket
No need to modify usual outdoor activities unless you experience symptoms such as coughing or throat irritation.
River Newmarket Live Precipitation Radar
Full Screen ViewRiver Newmarket Live Doppler RadarMSC Dual-Pol
River Newmarket, ON • Lat: 43.56° N, Lon: 78.07° W • Sweep 10m
River Newmarket 30-Year Weather History & Monthly Averages
Explore month-by-month temperatures, annual snowfall in cm, rainy days, and historical record highs and lows.
River Newmarket 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 River Newmarket, ON
What is the current temperature and conditions in River Newmarket?
As of today, the temperature in River Newmarket is 18.9°C with mainly sunny. The apparent temperature (feels like) is 21°C with relative humidity at 92%.
How does Wind Chill and Humidex affect River Newmarket?
During warmer conditions, the Canadian Humidex indicates comfort levels. The current Humidex is 19 (Comfortable).
What is the Air Quality Health Index (AQHI) for River Newmarket?
The current AQHI for River Newmarket 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 River Newmarket 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.