Barometric Pressure in Butte, United States 
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The pressure in Butte, Montana, United States is predicted to drop over the next few hours, with an average pressure of 833.9 hPa today, which is lower than normal.
Weather prediction: Expect wet, unsettled weather and a strong breeze
The daily total fluctuation in pressure in Butte is 7 hPa, with a low of 830.2 hPa and a high of 837.2 hPa.
Forecast
Hourly Pressure Trends
Track the barometric pressure in Butte hour by hour and stay informed about how it will change over the next 6 hours.
Butte, Montana's air pressure is affected by its location in the western United States, where high-pressure systems from the west meet low-pressure systems from the east.
Mountain ranges surround Butte, creating a "bowl" effect that traps air, increasing pressure. Valleys allow air to escape, decreasing pressure.
In summer, high pressure brings hot, dry air from the southwest. In winter, low pressure brings cold, snowy air from the northwest.
Butte has a semi-arid climate with low humidity and moderate temperatures, which are influenced by the pressure changes from surrounding mountain ranges.