Barometric Pressure in Roanoke, United States 
1014.2 hPa
20.2 ℃
55%
3.41 m/s
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The average pressure in Roanoke, Virginia, United States today is , which is considered normal. Pressure is trending rising.
Weather prediction: Fairly fine, possible showers early
Rapid Pressure Changes
Rapid pressure changes detected in Roanoke, often a sign of approaching weather shifts. See the forecast chart or get pressure alerts.
- Rapid Fall : ()
The daily total fluctuation in pressure in Roanoke is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Roanoke hour by hour across the next 6 hourly readings.
The barometric pressure in Roanoke varies throughout the year. It can rise and fall significantly within a short period. This affects the weather conditions.
Roanoke is situated in the Blue Ridge Mountains of southwest Virginia. The surrounding mountains influence the atmospheric pressure. They block and redirect air masses.
The mountains create a rain shadow effect. Moist air from the east is forced to rise, cool, and condense. This results in precipitation on the eastern side.
The valley where Roanoke is located remains relatively dry. The air is drier and warmer than in the surrounding mountains. This difference in air masses creates unique weather patterns.