Today's barometric pressure in Kansas City, 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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Kansas City sits where the Great Plains meet the Missouri River valley, a natural convergence zone for competing air masses. Frontal passages bring a 5 hPa drop on more than half of days from November through March.
Worst season for migraines: November through April. Kansas City sits at the western edge of the Missouri Valley where spring severe weather is frequent and sometimes violent. The confluence of the Kansas and Missouri rivers creates a broad valley that channels weather systems directly through the metro, amplifying pressure changes.
Common triggers in Kansas City: spring severe thunderstorm pressure drops, rapid cold front passages from the Rockies, Missouri Valley humidity surges in summer. Kansas City straddles the Missouri-Kansas border at the confluence of two major rivers, creating a wide valley that acts as a weather highway. The city marks the eastern edge of the Great Plains, where terrain begins to flatten dramatically to the west. This geographic position means weather systems accelerating off the Rockies reach Kansas City with minimal modification, delivering sharp, unmoderated pressure changes.
Typical pressure: Kansas City 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 967 hPa. Swings of 6-15 hPa over 24 hours are common during active weather and fall within the range most associated with pressure-triggered migraines.
2026 index: Kansas City ranks #35 of 100 in our 2026 U.S. Migraine Risk Index, where #1 is the most challenging city for weather-driven migraine.
Can Kansas City weather trigger migraines?
Yes. Kansas City experiences 6-15 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, rapid cold front passages from the Rockies, Missouri Valley humidity surges in summer.
What time of year are migraines worst in Kansas City?
In Kansas City 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 Kansas City?
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 Kansas City 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 Kansas City. The MigrAid app learns yours. It saves the barometric pressure, humidity and temperature with every migraine you log, shows whether Kansas City's swings really line up with your attacks, and alerts you when conditions match your own trigger history.