Today's barometric pressure in Jackson, 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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Jackson's central Mississippi location puts it at the northern edge of the Gulf Coast's subtropical influence. The city experiences frequent thunderstorm activity and is in the path of frontal systems that produce significant pressure drops year-round.
Worst season for migraines: December through February. Jackson sits in the central Mississippi corridor, where Gulf moisture streams northward with little terrain in the way. Winter fronts bring the most frequent pressure drops, from December through February, peaking in January, when 45% of days see a 5 hPa drop. Spring adds squall lines and tornadoes, while summer is far calmer, at 3% of days or fewer.
Common triggers in Jackson: Gulf moisture-fueled severe thunderstorms, Pearl River basin humidity concentration, summer heat dome events with temperatures above 100 degrees. Jackson occupies rolling hills along the Pearl River in central Mississippi, at the geological boundary between the Delta lowlands to the west and the pine belt to the east. The lack of significant terrain means Gulf moisture flows unimpeded into the city, creating high humidity that persists for months. The Pearl River and Ross Barnett Reservoir add localized moisture, and the city's position in the center of the state makes it a convergence point for weather systems approaching from any direction.
Typical pressure: Jackson averages 1006 hPa at rest, measured at the city's own elevation rather than corrected to sea level, and storm systems can push readings down to 996 hPa. Swings of 4-10 hPa over 24 hours are common during active weather and fall within the range most associated with pressure-triggered migraines.
2026 index: Jackson ranks #75 of 100 in our 2026 U.S. Migraine Risk Index, where #1 is the most challenging city for weather-driven migraine.
Can Jackson weather trigger migraines?
Yes. Jackson experiences 4-10 hPa barometric pressure swings, and research shows pressure drops are one of the most common migraine triggers. The city's specific patterns include Gulf moisture-fueled severe thunderstorms, Pearl River basin humidity concentration, summer heat dome events with temperatures above 100 degrees.
What time of year are migraines worst in Jackson?
In Jackson the most barometrically volatile stretch of the year falls in December through February. 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 Jackson?
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 Jackson 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 Jackson. The MigrAid app learns yours. It saves the barometric pressure, humidity and temperature with every migraine you log, shows whether Jackson's swings really line up with your attacks, and alerts you when conditions match your own trigger history.