Best Barometric Pressure App for Migraines in 2026

If you want to see pressure drops coming and check them against your own headaches, Pressure Pal is the most direct tool we found: it puts every logged attack on the pressure curve at the hour it started. If you only want a warning a day or two ahead, BaroBuddy or WeatherX Forecast will do that with less effort. If all you need is the reading right now, a plain barometer app such as Barometer & Altimeter is enough.

One disclosure before the details. I make MigrAid, one of the six apps below. I built it for my mom and my wife, who both get migraines, so it appears here as one option and this page is not neutral. Every fact about every app, ours included, comes from its live App Store or Google Play listing or its official website, read on October 14, 2026. We left out prices and star ratings because they change faster than a page can keep up.

The six apps side by side

All six run on both iPhone and Android. They split along two lines: whether the app forecasts pressure, and whether it lets you log headaches so the two can be compared.

Pressure Pal, for testing the theory

Migraine Tracker: Pressure Pal is built around one chart. Its listing says a migraine, headache or pain spike takes two taps to log and lands on the pressure curve at the exact hour it hit. It adds a 7 day forecast, an hourly 24 hour chart for your location, and a medication and trigger log next to each reading.

The feature that sets it apart is the one its listing calls a trigger checker. After three months of logs, it reports how many of your migraines followed a pressure drop and how large a drop it takes to set you off. That is a personal answer to the question most people have when they search for these apps. The official site links both the App Store and Google Play versions.

BaroBuddy and WeatherX, for the warning

BaroBuddy leads with advance notice. Its listing promises alerts 24 to 48 hours before a pressure drop, a 7 day hourly forecast, one-tap pain logging with weather captured automatically, and PDF summaries for a doctor. It is written for fibromyalgia and joint pain as well as migraine, which helps if headaches are not the only pain you track. It also offers a comparison of pressure stability between cities, for anyone weighing a move.

WeatherX Forecast comes from Cirrus Healthcare Products, the company behind WeatherX earplugs. The App Store listing describes a 5 day pressure forecast, 5 days of pressure history, push alerts before a shift, a sensitivity threshold you can adjust, and a changeable location. The listing is open about its purpose: the alerts tell you when to put the earplugs in. Nothing in it describes a headache diary, so pair it with one if you want to compare.

Migraine Buddy, if pressure is one factor among many

Migraine Buddy is a full migraine diary with a weather forecast inside it. Its listing includes a 7 day forecast of pressure and temperature changes alongside attack recording, medication and relief tracking, reports for a neurologist, automatic sleep recording and a user community. If you suspect weather is only part of the picture, it puts pressure next to everything else you log. We compared it with our own app in detail in MigrAid vs Migraine Buddy.

A plain barometer may be all you need

Barometer & Altimeter & Thermo from ExaMobile reads your phone's built-in pressure sensor, and falls back to the nearest weather station online when a phone has no sensor. Its listing names headaches and migraine among its uses, next to fishing and flying. On Google Play the same developer lists it as Barometer & Altimeter. It describes no forecast and no diary. If you already keep notes elsewhere and only want to glance at the pressure when a headache starts, this is the lighter choice.

There is a catch worth knowing before you compare its number with a weather app's. The National Weather Service defines station pressure as the pressure at the place itself, and sea level pressure as that reading corrected to sea level, which is what lets maps compare places at different heights. A phone sensor reads the first kind.

The gap can be large. In our 2026 index, three years of measured surface pressure averaged 838.4 hPa in Denver and 1,015.9 hPa in Miami. A sea level figure for Denver would hide most of that gap, because the correction accounts for the city's height. Neither number is wrong; they answer different questions.

Where MigrAid fits

MigrAid is a migraine tracker first, and the weather comes along with each entry. One tap logs an attack, and barometric pressure, temperature and humidity are attached automatically. Over time it looks for weather correlation and day-of-week and time-of-day patterns, and it can send predictive alerts when conditions match your own trigger history. PDF and CSV export cover appointments, and no account is needed. It runs on iPhone and Android.

It does not show an hourly pressure curve with your attacks laid over it. If watching that curve is what you want, Pressure Pal is the better pick. For a look at the pressure itself, our free city forecast pages show pressure measured at each city's own elevation, the same measure as a phone sensor.

Change matters more than the number

Whichever app you choose, watch the movement rather than the reading. In a year-long diary study of 28 people with migraine in Utsunomiya, Japan (Internal Medicine, 2011), migraine was more frequent when pressure fell by more than 5 hPa between the headache day and the day after. The same study found no link between a month's average pressure and headache frequency. Eighteen of the 28 had attacks associated with weather change.

Weather is a common suspect. In Lee Kelman's survey of 1,207 patients (Cephalalgia, 2007), 53.2% reported weather as a trigger. A 2024 review in Current Pain and Headache Reports is more cautious: study results are inconsistent, the effect of weather on attacks sits around 20%, and weather combined with other factors seems to matter more than weather alone. That is the case for logging, not just watching. Our guide to barometric pressure and migraines covers the research in more depth.

Choosing in a minute

You want proof, one way or the other. Pressure Pal, logged for three months, or any app that saves weather with each entry.

You want a heads-up and nothing else. BaroBuddy, or WeatherX Forecast if you already use the earplugs.

Weather is one suspect among several. A full diary such as Migraine Buddy or MigrAid, so pressure sits next to sleep, stress and everything else.

You only want the reading. A barometer app, keeping in mind it reads pressure at your own height.

No app can tell a weather headache from one that needs a doctor. The NHS says to call emergency services (911 in the US) or go to the emergency department for a headache that starts suddenly and is extremely painful, or that comes with numbness or weakness, trouble speaking or walking, confusion, drowsiness, loss of vision, a seizure, a very high temperature or a stiff neck, or a head injury in the last 3 months.

Headaches that keep coming back or are getting worse are worth booking an appointment for, whatever the pressure is doing.