Today's barometric pressure in Nashville, 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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Nashville's Cumberland Basin geography channels weather systems through the Tennessee Valley, amplifying pressure fluctuations. The city experiences some of the most active severe weather in the Southeast, with spring bringing particularly volatile conditions.
Worst season for migraines: December through March. Nashville is known for spring squall lines and occasional tornadoes, but its most frequent pressure drops come from December through March, peaking in January, when 53% of days see a 5 hPa drop. The Cumberland Basin channels weather systems through the valley, and summer is far calmer, at 9% of days or fewer.
Common triggers in Nashville: spring severe thunderstorm pressure drops, Ohio Valley cold front passages, summer humidity and heat stress. Nashville's music may be famous, but its weather volatility is underappreciated. The city sits at the convergence of multiple weather influences and experiences an extended severe weather season. Middle Tennessee's rolling terrain creates local effects that can amplify pressure changes compared to readings at the airport weather station.
Typical pressure: Nashville averages 999 hPa at rest, measured at the city's own elevation rather than corrected to sea level, and storm systems can push readings down to 986 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: Nashville ranks #67 of 100 in our 2026 U.S. Migraine Risk Index, where #1 is the most challenging city for weather-driven migraine.
Can Nashville weather trigger migraines?
Yes. Nashville 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 spring severe thunderstorm pressure drops, Ohio Valley cold front passages, summer humidity and heat stress.
What time of year are migraines worst in Nashville?
In Nashville 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 Nashville?
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 Nashville 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 Nashville. The MigrAid app learns yours. It saves the barometric pressure, humidity and temperature with every migraine you log, shows whether Nashville's swings really line up with your attacks, and alerts you when conditions match your own trigger history.