Barometric Pressure in Astoria, Illinois, US

The pressure in Astoria, United States is predicted to slowly drop over the next few hours, with an average pressure of 986.6 hPa today, which is lower than normal.

Weather prediction: Expect more wet and unsettled conditions

The daily total fluctuation in pressure in Astoria is 9.5 hPa, with a low of 981.8 hPa and a high of 991.3 hPa. The daily average here is lower than in most cities around the world.

Forecast

Here is the description of Astoria, Illinois's weather:

Weather patterns like high and low-pressure systems move across the Midwest, affecting Astoria's air pressure. When a high-pressure system is above Astoria, the air is pressed down, making the air pressure high. When a low-pressure system is above, the air is lifted, making the air pressure low.

Astoria's geography, being in the Midwest, means it's far from the ocean's moderating effects. This makes its air pressure more extreme, with bigger changes between high and low pressure.

In spring, low-pressure systems bring rain and thunderstorms, making the air pressure drop. Summer is warm with high pressure, causing the air to be calm and stable. Autumn sees a mix of high and low pressure, with weather changing quickly. Winter's cold air brings high pressure, making it chilly and calm.

Astoria has a humid continental climate, with big temperature changes between seasons. This means the air pressure changes a lot throughout the year, leading to varied weather.