Barometric Pressure in Ancaster, Canada 
0000 hPa
00.0 ℃
00.0 m/s
00.0%
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The pressure in Ancaster, Ontario, Canada is predicted to slowly drop over the next few hours, with an average pressure of 988.6 hPa today, which is lower than normal.
Weather prediction: Expect more wet and unsettled conditions
The daily total fluctuation in pressure in Ancaster is 5.6 hPa, with a low of 985.8 hPa and a high of 991.4 hPa.
Forecast
Hourly Pressure Trends
Track the barometric pressure in Ancaster hour by hour and stay informed about how it will change over the next 6 hours.
The barometric pressure in Ancaster, Ontario, Canada is influenced by its location in the Great Lakes region. Low-pressure systems from the lake can bring stormy weather. High-pressure systems from the northwest can bring clear skies.
Ancaster is situated on the Niagara Escarpment, a unique landform that stretches from Queenston to Tobermory. This escarpment creates a corridor for air masses to move through. As air rises or falls over the escarpment, it cools or warms, affecting the barometric pressure.
The surrounding landscape of rolling hills and forests also plays a role in shaping the local weather. Moist air from Lake Ontario can become trapped in the hills, leading to fog or clouds. Meanwhile, the forests help to moderate temperatures and block winds.