Barometric Pressure in Forest Grove, United States

• Forecast Chart
• Hourly Trends

The pressure in Forest Grove, Oregon, United States is predicted to slowly rise over the next few hours, with an average pressure of 1013.1 hPa today, which is considered normal.

Weather prediction: Expect more fair, dry, cool weather

The daily total fluctuation in pressure in Forest Grove is 7.3 hPa, with a low of 1009.5 hPa and a high of 1016.8 hPa.

Forecast

The barometric pressure in Forest Grove, Oregon, varies throughout the year. It changes with the seasons, influenced by the Pacific Ocean and the surrounding terrain. Atmospheric pressure fluctuates with the movement of high and low-pressure systems. This results in a mix of sunny and cloudy days.

Forest Grove lies in the Tualatin Valley, west of Portland. The city is surrounded by the Coast Range to the west and the Tualatin Mountains to the east. The valley's shape affects the flow of air, causing the atmospheric pressure to rise and fall. The proximity to the Pacific Ocean also influences the pressure, bringing in marine air masses.

The surrounding hills and mountains force air to rise, cool, and condense, resulting in precipitation. This orographic effect contributes to the region's rainfall. The combination of these factors creates a unique weather pattern in Forest Grove, with a mix of rain and sunshine throughout the year.