Barometric Pressure
Barometric Pressure in Gravenhurst, Canada 
1013 hPa
15.0 ℃
50%
3.0 m/s
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Forecast
Hourly Pressure Trends
Track the barometric pressure in Gravenhurst hour by hour across the next 6 hourly readings.
Gravenhurst, Ontario, has changing air pressure because of its location near Lake Muskoka. The lake cools the air in summer, making it heavier, and lowers pressure. In winter, the lake is frozen, warming the air and raising pressure. Gravenhurst's hills and valleys also affect air pressure, making it lower in valleys and higher on hills. During spring and fall, pressure changes quickly, bringing unpredictable weather. In summer, high pressure brings nice weather, while low pressure in winter brings snow. Gravenhurst has a humid continental climate, with cold winters and warm summers, which affects air pressure patterns.