Barometric Pressure in Tucson, United States 
1011.4 hPa
19.7 ℃
58%
0.73 m/s
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The average pressure in Tucson, Arizona, United States today is , which is considered normal. Pressure is trending falling.
Weather prediction: Rain at frequent intervals
Rapid Pressure Changes
Rapid pressure changes detected in Tucson, often a sign of approaching weather shifts. See the forecast chart or get pressure alerts.
- Rapid Fall : ()
The daily total fluctuation in pressure in Tucson is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Tucson hour by hour across the next 6 hourly readings.
The barometric pressure in Tucson varies throughout the year due to the city's location in the Sonoran Desert. Pressure changes are influenced by the seasons and weather fronts. During storms, pressure drops, and during fair weather, it rises.
The pressure is also affected by the surrounding mountains, which block or redirect air masses. Tucson is surrounded by four mountain ranges: the Santa Catalinas, the Tortolitas, the Santa Ritas, and the Rincons.
These mountains create channels for air to flow through, which influences the local pressure. They also create a rain shadow effect, resulting in dry air and clear skies.