Barometric Pressure in Dillon, Montana, US

The pressure in Dillon, United States is predicted to rise over the next few hours, with an average pressure of 846.8 hPa today, which is lower than normal.

Weather prediction: Expect fair, dry, cool weather and a strong breeze

The daily total fluctuation in pressure in Dillon is 6.6 hPa, with a low of 843.4 hPa and a high of 850 hPa. The daily average here is lower than in most cities around the world.

Forecast

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.