Weather24Barometric pressure in Washington, D.C. today: right now
Right now in Washington, D.C. the barometric pressure is 29.92 inHg (1013 hPa): normal, falling over the last 3 hours (−0.06 inHg). This time yesterday: 30.17 inHg; tomorrow the model expects 29.90 inHg.
In 24 hours the pressure has changed by −0.26 inHg — a big swing. These are the changes weather-sensitive people tend to notice most.
normal · 1013 hPa, as in forecasts
1009 hPa · at about 100 ft, unadjusted
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.
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.
Pressure in Washington, D.C.: 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
- Now
- 29.92 inHgnormal
- Tomorrow, same time
- 29.90 inHg−0.02 inHg from now
- Biggest 24-hour change this week
- +0.37 inHgto Saturday 10/31 at 10 AM
Washington, D.C.: coastal storms and summer stability
In Washington the largest drops in pressure come with coastal lows in winter and with the remnants of tropical systems in late summer and fall. Summer is dominated by the Bermuda high: pressure stays steady while heat and humidity build, and afternoon thunderstorms do the rest.
Sea level or barometer: 29.92 inHg and 29.81 inHg in Washington, D.C.
The model point for Washington, D.C. is at about 100 ft, so here the two numbers are close. Pressure drops by about 0.1 inHg every 90 feet of height.
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 Washington, D.C. 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.
Barometric pressure in Washington, D.C. 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.
Barometric pressure in Washington, D.C.: FAQ
What is the barometric pressure in Washington, D.C. today?
What does a barometer read in Washington, D.C.?
Is the air pressure in Washington, D.C. high or low today?
What will the pressure be in Washington, D.C. tomorrow?
Where does the data come from?
Pressure in other cities
See also: rain radar Washington, D.C. · lightning map · UV index Washington, DC