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Barometric pressure · Atlanta

Barometric pressure in Atlanta today: right now

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Right now in Atlanta the barometric pressure is 29.85 inHg (1011 hPa): normal, falling over the last 3 hours (−0.04 inHg). This time yesterday: 30.03 inHg; tomorrow the model expects 29.90 inHg.

Sea level 29.85 inHg

normal · 1011 hPa, as in forecasts

Barometer in Atlanta 28.78 inHg

975 hPa · at about 1,040 ft, unadjusted

Past 7 days 29.85–30.37 inHg

low: today at 3 AM · high: Sunday 11/1 at 11 AM

Data for 3 AM local time. The first value is reduced to sea level; the barometer value is the pressure at the city’s height.

Meteo-sensitivity card in the app: 7.8 out of 10, pressure falling by 0.27 inHg

In the Weather24 app

How will the pressure affect you today?

Meteo-sensitivity from 0 to 10, hour by hour, and the “Rapid pressure drop” warning.

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Pressure in Atlanta: the past week and tomorrow

Hour by hour, at sea level, in inHg. Left of the amber line is the past 7 days, right of it the forecast.

  • Sea-level pressure
  • Standard, 29.92 inHg
  • Now, 3 AM
  • Forecast
  • Biggest 24-hour change
29.83 29.97 30.12 30.27 30.42 ThuFriSatSunMonTueWedtodaytomorrow
29.83 29.97 30.12 30.27 30.42 ThuFriSatSunMonTuetoday
Now
29.85 inHgnormal
Tomorrow, same time
29.90 inHg+0.04 inHg from now
Biggest 24-hour change this week
−0.23 inHgto yesterday at 1 PM
Only in Atlanta

Atlanta at about 1,000 feet: why the barometer reads lower

Atlanta sits at roughly 1,000 feet, one of the highest major cities east of the Mississippi. A barometer that is not adjusted reads about 1.1 inHg lower than the sea-level number in forecasts. For comparing with other cities, use the sea-level value; for spotting a change in the weather, either works.

Height of the model point 1,040 ft An unadjusted barometer here reads 28.78 inHg right now

Sea level or barometer: 29.85 inHg and 28.78 inHg in Atlanta

Sea level · as in forecasts 29.85 inHg 1011 hPa · used on this page
−1.07 inHgheight of 1,040 ft
Barometer in Atlanta 28.78 inHg 975 hPa · unadjusted

Pressure drops by about 0.1 inHg every 90 feet, so at about 1,040 ft the two numbers are far apart. If your barometer at home shows something close to 28.78 inHg, it is not a storm — it is the altitude.

In the Weather24 app you choose which one to see under “Pressure reference”: Local, the default, shows a value close to a barometer’s; Sea level shows the forecast value used on this page.

Pressure swings in Atlanta and how you feel

Weather-sensitive people usually notice changes in pressure — especially a fast fall ahead of a front — more than the value itself. That is why it helps to watch the change over the last 3 hours and the last 24.

More in migraine and arthritis weather forecast.

This is weather information, not medical advice. If your symptoms are severe or new, talk to your doctor.

Atlanta · last 24 hours −0.17 inHg Change since this time yesterday
Last 3 hours −0.04 inHg

Barometric pressure in Atlanta in the Weather24 app

The “Pressure” card with the reading and level where you are, the “Pressure over the day” chart with the standard-pressure line, the “Pressure” map layer with highs and lows, the “Rapid pressure drop” warning card and “Meteo-sensitivity”: a 0–10 score, hour by hour, with the reasons — pressure change, humidity, wind, temperature swings.

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Barometric pressure in Atlanta: FAQ

What is the barometric pressure in Atlanta today?
Right now in Atlanta the barometric pressure is 29.85 inHg (1011 hPa): normal, falling over the last 3 hours (−0.04 inHg). This time yesterday: 30.03 inHg; tomorrow the model expects 29.90 inHg. The value is reduced to sea level and updates every hour.
What does a barometer read in Atlanta?
The model point for Atlanta is at about 1,040 ft, so an unadjusted barometer reads about 28.78 inHg (975 hPa) right now: 1.07 inHg less than the sea-level pressure (29.85 inHg). Forecasts give the second value so cities can be compared.
Is the air pressure in Atlanta high or low today?
At 29.85 inHg the pressure is normal (standard is 29.92 inHg). Over the past 7 days it ranged from 29.85 inHg to 30.37 inHg. How to read these numbers: barometric pressure today in the US.
What will the pressure be in Atlanta tomorrow?
At the same time tomorrow the model expects 29.90 inHg (+0.04 inHg from now). The hour-by-hour forecast is at the right end of the chart.
Where does the data come from?
From weather models via Open-Meteo (CC BY 4.0), hour by hour. These are model values for one point in the city, not readings from a particular station. Official observations and warnings in the US are published by the National Weather Service.

Pressure in other cities

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See also: rain radar Atlanta · lightning map · UV index Atlanta