Pressure is a clue, not a verdict
Barometric changes are one of several factors people associate with migraine. A journal can show coincidence over time; it cannot prove that weather caused a specific attack.
Treat pressure notes as context next to sleep, stress, hormones, and medication timing — not as a forecast you must obey.
What Meadow does
With location permission (or a chosen city), Meadow can pull weather and barometric data from Open-Meteo to power a short-horizon risk view and attach context to logs. Estimates are informational only.