Today's barometric pressure in Lexington, 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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Lexington's Bluegrass Region experiences the full range of Ohio Valley weather volatility. The city sits where Appalachian and Midwest weather patterns overlap, creating frequent and sometimes unpredictable barometric shifts.
Worst season for migraines: November through April. Lexington's Bluegrass Basin position catches both Ohio Valley weather systems from the north and Gulf moisture surging up the Kentucky River corridor. Winter and early spring fronts produce the most frequent pressure drops across the rolling horse country terrain, peaking in February, when 55% of days see a 5 hPa drop.
Common triggers in Lexington: Ohio Valley cold front passages, spring severe thunderstorm development, autumn temperature inversions in the Bluegrass Basin. Lexington sits at 980 feet in the Inner Bluegrass region, a gently rolling limestone plateau surrounded by the Kentucky River gorge and Appalachian foothills. The karst topography creates underground drainage patterns that keep surface humidity lower than surrounding river valleys, but the basin still traps air during inversions. The proximity to the Appalachian Mountains means systems from the west can stall as they encounter the mountain barrier, prolonging pressure events.
Typical pressure: Lexington averages 983 hPa at rest, measured at the city's own elevation rather than corrected to sea level, and storm systems can push readings down to 969 hPa. Swings of 5-13 hPa over 24 hours are common during active weather and fall within the range most associated with pressure-triggered migraines.
2026 index: Lexington ranks #52 of 100 in our 2026 U.S. Migraine Risk Index, where #1 is the most challenging city for weather-driven migraine.
Can Lexington weather trigger migraines?
Yes. Lexington experiences 5-13 hPa barometric pressure swings, and research shows pressure drops are one of the most common migraine triggers. The city's specific patterns include Ohio Valley cold front passages, spring severe thunderstorm development, autumn temperature inversions in the Bluegrass Basin.
What time of year are migraines worst in Lexington?
In Lexington the most barometrically volatile stretch of the year falls in November through April. 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 Lexington?
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 Lexington 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 Lexington. The MigrAid app learns yours. It saves the barometric pressure, humidity and temperature with every migraine you log, shows whether Lexington's swings really line up with your attacks, and alerts you when conditions match your own trigger history.