Today's barometric pressure in Idaho Falls, 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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Idaho Falls sits at 1,434 metres on the Snake River Plain, a broad arc of volcanic ground curving across southern Idaho. Pressure averages 857 hPa, and the plain's openness lets systems move through unobstructed despite the mountains beyond.
Worst season for migraines: March, January and February. March is the most volatile month, when the winter pattern breaks down and Pacific systems begin crossing more frequently. Winter itself often settles into cold, stable stretches with the barometer nearly motionless.
Common triggers in Idaho Falls: cold air pooling on the Snake River Plain, spring pattern breakdown in March, persistent high desert aridity. Cold air drains onto the Snake River Plain from the surrounding highlands and pools there, producing some of the coldest readings in the lower 48 on clear winter nights. That trapped layer can persist for days before a system clears it. The plain's high elevation and desert climate also mean humidity stays low year-round, adding dehydration to the local mix.
Typical pressure: Idaho Falls averages 857 hPa at rest, measured at the city's own elevation rather than corrected to sea level, and storm systems can push readings down to 842 hPa. Swings of 7-10 hPa over 24 hours are common during active weather and fall within the range most associated with pressure-triggered migraines.
2026 index: Idaho Falls is not one of the 100 metros ranked in our 2026 U.S. Migraine Risk Index, which shows how they compare.
Can Idaho Falls weather trigger migraines?
Yes. Idaho Falls experiences 7-10 hPa barometric pressure swings, and research shows pressure drops are one of the most common migraine triggers. The city's specific patterns include cold air pooling on the Snake River Plain, spring pattern breakdown in March, persistent high desert aridity.
What time of year are migraines worst in Idaho Falls?
In Idaho Falls the most barometrically volatile stretch of the year falls in March, 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 Idaho Falls?
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 Idaho Falls 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 Idaho Falls. The MigrAid app learns yours. It saves the barometric pressure, humidity and temperature with every migraine you log, shows whether Idaho Falls's swings really line up with your attacks, and alerts you when conditions match your own trigger history.