Barometric Pressure in Dillon, United States 
1018.2 hPa
-0.1 ℃
73%
2.55 m/s
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The average pressure in Dillon, Montana, 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 Dillon, often a sign of approaching weather shifts. See the forecast chart or get pressure alerts.
- Rapid Fall : ()
- Rapid Rise : ()
- Rapid Rise : ()
- Rapid Fall : ()
- Rapid Fall : ()
The daily total fluctuation in pressure in Dillon is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Dillon hour by hour across the next 6 hourly readings.
Dillon, Montana is in a valley, which makes the air pressure change more slowly than in nearby mountains. This means the air is often calm and stable.
The valley's shape and surrounding mountains block winds from the west, making the air pressure rise and fall more gently. This leads to fewer strong storms and more calm days.
In winter, cold air from the north presses down on Dillon, making the air pressure rise and leading to clear, cold days. In summer, warm air from the south rises, making the air pressure fall and bringing thunderstorms.
Dillon has a semi-arid climate, which means it's dry with low humidity. This dry air is lighter, so it rises easily, making the air pressure lower and causing more weather changes.