Today's barometric pressure in Oklahoma 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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Oklahoma City is at the heart of Tornado Alley, experiencing some of the most extreme barometric pressure changes in North America. The dry line that sets up across western Oklahoma creates dramatic pressure gradients that are especially problematic in spring.
Worst season for migraines: November through March. Oklahoma City is the heart of Tornado Alley, but its most frequent pressure drops come earlier in the year. Strong fronts from November through March bring a 5 hPa drop on as many as 60% of days in February. The spring dry line often sets up directly over the metro, creating explosive thunderstorms, and summer is far calmer, at 12% of days or fewer.
Common triggers in Oklahoma City: dry line supercell thunderstorms, tornado-related extreme pressure drops, persistent spring wind creating atmospheric instability. Oklahoma City sits in the heart of the Southern Plains where the Rocky Mountain rain shadow meets Gulf moisture streaming north up the Red River valley. The Canadian River runs through the metro, and the gently rolling terrain offers nothing to slow incoming weather systems. The city averages more tornado warnings per year than any other major US metro.
Typical pressure: Oklahoma City averages 973 hPa at rest, measured at the city's own elevation rather than corrected to sea level, and storm systems can push readings down to 958 hPa. Swings of 6-14 hPa over 24 hours are common during active weather and fall within the range most associated with pressure-triggered migraines.
2026 index: Oklahoma City ranks #53 of 100 in our 2026 U.S. Migraine Risk Index, where #1 is the most challenging city for weather-driven migraine.
Can Oklahoma City weather trigger migraines?
Yes. Oklahoma City experiences 6-14 hPa barometric pressure swings, and research shows pressure drops are one of the most common migraine triggers. The city's specific patterns include dry line supercell thunderstorms, tornado-related extreme pressure drops, persistent spring wind creating atmospheric instability.
What time of year are migraines worst in Oklahoma City?
In Oklahoma City the most barometrically volatile stretch of the year falls in November 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 Oklahoma 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 Oklahoma 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 Oklahoma City. The MigrAid app learns yours. It saves the barometric pressure, humidity and temperature with every migraine you log, shows whether Oklahoma City's swings really line up with your attacks, and alerts you when conditions match your own trigger history.