Today's barometric pressure in Memphis, a 48-hour pressure chart, and a risk score for weather-triggered migraine and headache, based on pressure drops, humidity, and temperature changes.
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Memphis sits in the Mississippi River valley where Gulf moisture meets continental air masses. This collision zone produces frequent pressure changes through winter and early spring, and thunderstorms into early summer.
Worst season for migraines: December through March. Memphis sits in the Mississippi River valley, where the wide, flat basin acts as a moisture highway for Gulf air. Winter fronts bring the most frequent pressure drops, from December through March, peaking in February, when 51% of days see a 5 hPa drop. Spring adds powerful squall lines and occasional tornadoes, while summer is far calmer, at 8% of days or fewer.
Common triggers in Memphis: Mississippi Valley squall line passages, Gulf moisture surges up the river corridor, summer heat dome humidity events. Memphis occupies the Chickasaw Bluffs overlooking the Mississippi River floodplain, at the convergence of the Mississippi, Wolf, and Loosahatchie rivers. This low-lying river geography channels moisture-laden air from the Gulf directly through the city, creating higher humidity levels than surrounding elevated areas. The flat Delta terrain to the west offers no resistance to incoming storm systems.
Typical pressure: Memphis averages 1007 hPa at rest, measured at the city's own elevation rather than corrected to sea level, and storm systems can push readings down to 995 hPa. Swings of 4-12 hPa over 24 hours are common during active weather and fall within the range most associated with pressure-triggered migraines.
2026 index: Memphis ranks #68 of 100 in our 2026 U.S. Migraine Risk Index, where #1 is the most challenging city for weather-driven migraine.
Can Memphis weather trigger migraines?
Yes. Memphis experiences 4-12 hPa barometric pressure swings, and research shows pressure drops are one of the most common migraine triggers. The city's specific patterns include Mississippi Valley squall line passages, Gulf moisture surges up the river corridor, summer heat dome humidity events.
What time of year are migraines worst in Memphis?
In Memphis the most barometrically volatile stretch of the year falls in December through March. That is when weather is most likely to play a part, if weather is a trigger for you at all. See when migraine weather season starts across the U.S.
Is there a barometric pressure headache forecast for Memphis?
This page works as one. Many people call a headache that arrives with a weather change a barometric pressure headache, and this forecast tracks the pressure drops, humidity and temperature swings behind that idea. The score covers the next 24 hours in Memphis and the chart shows the next 48. It is built on migraine research, so treat it as a rough guide for other headaches. A sudden, severe headache needs urgent medical care, whatever the weather.
Your own forecast
This page shows the weather risk for everyone in Memphis. The MigrAid app learns yours. It saves the barometric pressure, humidity and temperature with every migraine you log, shows whether Memphis's swings really line up with your attacks, and alerts you when conditions match your own trigger history.