Barometric Pressure in Upper Marlboro, United States 
1021.6 hPa
17 ℃
96%
2.34 m/s
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The average pressure in Upper Marlboro, Maryland, United States today is , which is considered normal. Pressure is trending falling.
Weather prediction: Rain at times, worse later
The daily total fluctuation in pressure in Upper Marlboro is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Upper Marlboro hour by hour across the next 6 hourly readings.
Upper Marlboro has humid subtropical weather. Air pressure changes cause weather patterns. Low pressure brings rain and clouds, while high pressure brings clear skies.
The area's geography, near the Atlantic Ocean and Chesapeake Bay, affects air pressure. Moist air from the ocean influences weather.
Seasonal changes impact air pressure. Summer has high pressure and hot weather. Winter has low pressure and cold, snowy weather.
Spring and fall have changing pressure, bringing rain or sunshine. Upper Marlboro's climate type means big changes in air pressure throughout the year.