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Maryland barometric pressure today
Right now the highest pressure in Maryland is Salisbury, 29.91 inHg (1013 hPa) and the lowest is Hagerstown, 29.86 inHg (1011 hPa). Values are sea-level pressure from 3 airport weather stations.
| City | Station | inHg | 3 h |
|---|---|---|---|
| Baltimore, MD | KDMH | 29.88 | ↘ -2.7 |
| Hagerstown, MD | KHGR | 29.86 | ↘ -2.7 |
| Salisbury, MD | KSBY | 29.91 | ↘ -1.6 |
Elevation and pressure across Maryland
The cities here run from about 23 ft in Salisbury to 538 ft in Hagerstown. On a standard day that means about 29.90 inHg of actual air pressure in Salisbury and 29.34 inHg in Hagerstown. The readings above are corrected to sea level, so any difference between stations comes from the weather, not the height.
Highest point in Maryland · Sea-level vs station pressure · High vs low pressure
Frequently asked questions
What is the barometric pressure in Maryland today?
The live map and station board on this page show sea-level pressure at 3 weather stations across Maryland, including Baltimore and Hagerstown. Each reading is the latest airport report, checked about every 10 minutes.
Why does a barometer in Hagerstown read lower than one in Salisbury?
Elevation. Hagerstown sits at about 538 ft and Salisbury at about 23 ft, a gap worth roughly 0.55 inHg of actual air pressure on a standard day. Forecasts correct for that, so the sea-level values here can be compared directly.
Is the pressure rising or falling in Maryland?
The last column of the station board shows the change over the last three hours, in hPa, for each station. Falling numbers usually mean clouds and rain are on the way; rising numbers mean clearing.