Barometric Pressure in Saint Margarets, United States 
1023.2 hPa
18.6 ℃
71%
3.49 m/s
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The average pressure in Saint Margarets, Maryland, United States today is , which is higher than normal. Pressure is trending rising.
Weather prediction: Fairly fine, possible showers early
The daily total fluctuation in pressure in Saint Margarets is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Saint Margarets hour by hour across the next 6 hourly readings.
Saint Margarets, Maryland, has changeable Mid-Atlantic weather. Storms often arrive from the west or southwest, bringing rain, gusty winds, or summer thunderstorms. Air pressure usually falls as a storm approaches, then rises as it moves away. Strong high pressure often brings calmer, clearer weather.
The nearby Chesapeake Bay and its inlets affect local conditions. Water warms and cools more slowly than land, so it can soften temperature swings near the shore. Moist air from the bay can make summers feel muggy, while bay breezes may shift winds and bring cooler air to waterfront areas.
Summers are warm and humid, with frequent showers or thunderstorms. Winters are cool, with occasional snow or icy rain when cold air meets moisture. Spring and fall bring quick changes as warm and cool air masses alternate. Fall is often drier and more settled than spring, though passing storms can still bring rain and wind.