Barometric Pressure in Astoria, United States 
1017.9 hPa
10.2 ℃
80%
0.76 m/s
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The average pressure in Astoria, Oregon, United States today is , which is considered normal. Pressure is trending falling.
Weather prediction: Rain at times, very unsettled
The daily total fluctuation in pressure in Astoria is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Astoria hour by hour across the next 6 hourly readings.
The weather in Astoria is affected by low-pressure systems from the Pacific Ocean, which cause frequent changes in barometric pressure. These changes bring rain and strong winds.
Astoria's low elevation near sea level and surrounding mountains influence atmospheric pressure. The mountains block some air from the east, while the ocean air dominates from the west.
In winter, low pressure dominates, bringing rain and strong winds. In summer, high pressure brings drier and calmer weather. Spring and fall have mixed pressure patterns.
Astoria has a marine west coast climate, characterized by frequent rain and mild temperatures. This leads to constant fluctuations in barometric pressure, making the weather unpredictable and variable.