Barometric Pressure in Alpena, United States 
1004.4 hPa
9.2 ℃
91%
5.7 m/s
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The average pressure in Alpena, Michigan, United States today is , which is considered normal. Pressure is trending rising.
Weather prediction: Fairly fine, improving
Rapid Pressure Changes
Rapid pressure changes detected in Alpena, often a sign of approaching weather shifts. See the forecast chart or get pressure alerts.
- Rapid Rise : ()
The daily total fluctuation in pressure in Alpena is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Alpena hour by hour across the next 6 hourly readings.
Alpena's weather is affected by its location near Lake Huron, which helps regulate air pressure. Warm air from the lake rises, creating low pressure, and cool air from Canada sinks, creating high pressure.
The surrounding hills and woods in Alpena also impact air pressure. As winds blow in from the lake, they are forced upwards, creating areas of low pressure near the hills.
In the winter, cold Arctic air dominates, bringing high pressure and cold temperatures. In the summer, warm air from the lake brings low pressure and warmer temperatures.
Alpena has a humid continental climate, characterized by large seasonal pressure changes. This means it experiences cold winters and warm summers, with pressure fluctuations affecting the weather patterns.