Barometric Pressure in Dillon, United States 
0000 hPa
00.0 ℃
00.0 m/s
00.0%
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The pressure in Dillon, Montana, United States is predicted to quickly drop over the next few hours, with an average pressure of 848.1 hPa today, which is lower than normal.
Weather prediction: Expect gale force weather
The daily total fluctuation in pressure in Dillon is 8 hPa, with a low of 844.7 hPa and a high of 852.7 hPa.
Forecast
Hourly Pressure Trends
Track the barometric pressure in Dillon hour by hour and stay informed about how it will change over the next 6 hours.
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.