Barometric Pressure in South Lyon, United States 
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The pressure in South Lyon, Michigan, United States is predicted to rise over the next few hours, with an average pressure of 978.6 hPa today, which is lower than normal.
Weather prediction: Expect fair, dry, cool weather and a strong breeze
The daily total fluctuation in pressure in South Lyon is 14.4 hPa, with a low of 973 hPa and a high of 987.4 hPa.
Forecast
Hourly Pressure Trends
Track the barometric pressure in South Lyon hour by hour and stay informed about how it will change over the next 6 hours.
South Lyon's weather is affected by its location near the Great Lakes, which makes air pressure change often. When a low-pressure system comes from the west, it brings rain and storms.
The city's geography, with lakes to the east and north, blocks some cold air from Canada, keeping winters a bit warmer. This also makes air pressure rise and fall more slowly.
In winter, cold air from Canada brings low pressure, making it cold and snowy. In summer, warm air from the Gulf of Mexico brings high pressure, making it hot and humid.
South Lyon has a humid continental climate, which means it has big temperature differences between winter and summer. This climate type makes air pressure change a lot between seasons, causing different weather patterns.