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Maine barometric pressure today
Right now the highest pressure in Maine is Portland, 29.61 inHg (1003 hPa) and the lowest is Caribou, 29.42 inHg (996 hPa). Values are sea-level pressure from 3 airport weather stations.
| City | Station | inHg | 3 h |
|---|---|---|---|
| Portland, ME | KPWM | 29.61 | ↗ +0.3 |
| Bangor, ME | KBGR | 29.53 | ↗ +1.0 |
| Caribou, ME | KCAR | 29.42 | ↘ -0.3 |
Elevation and pressure across Maine
The cities here run from about 62 ft in Portland to 449 ft in Caribou. On a standard day that means about 29.85 inHg of actual air pressure in Portland and 29.44 inHg in Caribou. The readings above are corrected to sea level, so any difference between stations comes from the weather, not the height.
Highest point in Maine · Sea-level vs station pressure · High vs low pressure
Frequently asked questions
What is the barometric pressure in Maine today?
The live map and station board on this page show sea-level pressure at 3 weather stations across Maine, including Portland and Bangor. Each reading is the latest airport report, checked about every 10 minutes.
Why does a barometer in Caribou read lower than one in Portland?
Elevation. Caribou sits at about 449 ft and Portland at about 62 ft, a gap worth roughly 0.42 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 Maine?
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.