Barometric Pressure in Washington, United States 
1022.7 hPa
11.3 ℃
66%
6.42 m/s
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The average pressure in Washington, Washington, D.C., United States today is , which is higher than normal. Pressure is trending rising.
Weather prediction: Fairly fine, possible showers early
Rapid Pressure Changes
Rapid pressure changes detected in Washington, often a sign of approaching weather shifts. See the forecast chart or get pressure alerts.
- Rapid Fall : ()
- Rapid Fall : ()
The daily total fluctuation in pressure in Washington is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Washington hour by hour across the next 6 hourly readings.
Washington, D.C.'s weather is affected by its location near the Atlantic Ocean and the Appalachian Mountains. These bodies of water and land create weather patterns that impact air pressure.
The city's coastal location means it gets hit with oceanic air masses, which bring high air pressure and fair weather. When these air masses meet the Appalachian Mountains, they force air to rise, creating low air pressure and rain.
In the summer, high air pressure dominates, bringing hot and humid weather. In the winter, low air pressure is common, resulting in cold and snowy conditions.
Washington, D.C. has a humid subtropical climate, characterized by hot summers and mild winters. This climate type means the city experiences significant pressure changes between seasons, leading to varying weather patterns.