Today's barometric pressure in Mesa, 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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Mesa shares the Phoenix metro's desert climate with its extreme daily temperature swings. The city's slightly higher elevation on the eastern valley edge can mean marginally different pressure readings and storm exposure compared to central Phoenix.
Worst season for migraines: January and February. Mesa sits along the Salt River valley, close to the Superstition Mountains where monsoon thunderstorms start. No month reaches the 35% of days our index uses for a trigger season. Winter and spring storms bring the most drops, with a 5 hPa drop on 25% of days in January, while the summer monsoon moves pressure very little, 2% of days or fewer in each summer month.
Common triggers in Mesa: monsoon thunderstorm outflow boundaries, extreme heat above 110 degrees causing dehydration, dust storm haboobs from agricultural land to the south. Mesa sits at 1,250 feet on the eastern edge of the Phoenix metro, where the Sonoran Desert floor begins to rise toward the Superstition Mountains and Tonto National Forest. The city's proximity to higher terrain means it often receives monsoon storms earlier and more intensely than western Phoenix suburbs. The Salt River corridor channels winds through the metro, and agricultural areas to the southeast contribute dust and allergen triggers.
Typical pressure: Mesa averages 969 hPa at rest, measured at the city's own elevation rather than corrected to sea level, and storm systems can push readings down to 962 hPa. Swings of 3-7 hPa over 24 hours are common during active weather and fall within the range most associated with pressure-triggered migraines.
2026 index: Mesa ranks #83 of 100 in our 2026 U.S. Migraine Risk Index, where #1 is the most challenging city for weather-driven migraine.
Can Mesa weather trigger migraines?
Yes. Mesa experiences 3-7 hPa barometric pressure swings, and research shows pressure drops are one of the most common migraine triggers. The city's specific patterns include monsoon thunderstorm outflow boundaries, extreme heat above 110 degrees causing dehydration, dust storm haboobs from agricultural land to the south.
What time of year are migraines worst in Mesa?
In Mesa the most barometrically volatile stretch of the year falls in January and 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 Mesa?
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 Mesa 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 Mesa. The MigrAid app learns yours. It saves the barometric pressure, humidity and temperature with every migraine you log, shows whether Mesa's swings really line up with your attacks, and alerts you when conditions match your own trigger history.