Barometric Pressure in Selwyn, Canada 
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The pressure in Selwyn, Ontario, Canada is predicted to rapidly rise over the next few hours, with an average pressure of 977.3 hPa today, which is lower than normal.
Weather prediction: Expect shortly fair weather and gale or storm winds
The daily total fluctuation in pressure in Selwyn is 13.2 hPa, with a low of 967.9 hPa and a high of 981.1 hPa.
Forecast
Hourly Pressure Trends
Track the barometric pressure in Selwyn hour by hour and stay informed about how it will change over the next 6 hours.
The barometric pressure in Selwyn, Ontario, Canada generally ranges from 980 to 1020 millibars. It usually stays steady throughout the year.
Selwyn is situated in a valley surrounded by rolling hills. This landscape causes cold air to settle in the valley. As a result, the air pressure is often lower. The surrounding hills also block some winds, which helps keep the pressure steady.
The nearby Kawartha Lakes affect the atmospheric pressure in Selwyn too. Moist air from the lakes moves into the valley, increasing the air pressure.