Barometric Pressure in Pomona, United States 
0000 hPa
00.0 ℃
00.0 m/s
00.0%
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The pressure in Pomona, California, United States is predicted to slowly drop over the next few hours, with an average pressure of 981.6 hPa today, which is lower than normal.
Weather prediction: Expect more wet and unsettled conditions
The daily total fluctuation in pressure in Pomona is 2.6 hPa, with a low of 980.6 hPa and a high of 983.2 hPa.
Forecast
Hourly Pressure Trends
Track the barometric pressure in Pomona hour by hour and stay informed about how it will change over the next 6 hours.
Weather patterns in Pomona cause barometric pressure to rise and fall. High pressure systems bring clear skies, while low pressure systems bring clouds and storms. Pressure changes quickly when storms move in.
Pomona's elevation of 800 feet above sea level affects atmospheric pressure. The San Gabriel Mountains to the north block some air masses, causing pressure to vary. The valley location also traps air, making pressure changes more dramatic.
In winter, pressure is usually low, bringing rain and cool temperatures. In summer, pressure is high, making it hot and dry. Spring and fall bring gentle pressure changes and mild weather.
Pomona has a Mediterranean climate, characterized by dry summers and wet winters. This climate type means pressure fluctuations are big, making weather changes feel more extreme.