Barometric Pressure in Olney, United States 
1018.1 hPa
12.1 ℃
84%
7.19 m/s
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The average pressure in Olney, Illinois, United States today is , which is considered normal. Pressure is trending rising.
Weather prediction: Fairly fine, possible showers early
The daily total fluctuation in pressure in Olney is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Olney hour by hour across the next 6 hourly readings.
Olney, Illinois has changing air pressure due to its location in the Midwest. The city's flat geography lets winds move freely, affecting air pressure. In winter, cold air from Canada brings low pressure and cold weather. In summer, warm air from the Gulf of Mexico brings high pressure and hot weather. Olney has a humid continental climate, meaning big temperature differences between seasons. This causes big air pressure changes, leading to varying weather patterns throughout the year.