Barometric Pressure in Helena, Montana, US

The pressure in Helena, United States is predicted to steady rise over the next few hours, with an average pressure of 876.6 hPa today, which is lower than normal.

Weather prediction: Continued current weather

The daily total fluctuation in pressure in Helena is 6.4 hPa, with a low of 874.2 hPa and a high of 880.6 hPa. The daily average here is lower than in most cities around the world.

Forecast

The barometric pressure in Helena, Montana is influenced by its location in the northwestern United States. It fluctuates throughout the year due to changing weather patterns.

The pressure can drop significantly during storms. This brings rain and snow to the area.

The city is situated in a valley surrounded by mountains. These mountains block or redirect air masses. They also force warm air to rise, cool, and condense. This leads to precipitation.

The nearby Continental Divide affects the flow of air. It splits the prevailing westerly winds, creating different weather patterns.