Today's barometric pressure in Bend, 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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Bend sits at 1,106 metres in the Cascade rain shadow, where the mountains strip Pacific storms of moisture but not their pressure signature. Pressure averages 891 hPa, and the high desert setting gives the city a climate unlike anywhere west of the range.
Worst season for migraines: January through March. Cool-season systems crossing the Cascades bring the year's main barometric activity, arriving as wind and pressure change more often than as precipitation. Summer is dry and stable enough that weeks can pass with almost no movement.
Common triggers in Bend: rain shadow pressure changes without precipitation, 20-degree daily temperature ranges, wildfire smoke during late summer. Crossing the Cascade crest wrings most of the water out of incoming systems, so Bend receives a fraction of the rainfall that Eugene does at the same latitude. What arrives instead is the pressure change without the weather, which catches people who judge conditions by looking outside. Daily temperature ranges exceeding 20 degrees are routine in the thin high desert air.
Typical pressure: Bend averages 891 hPa at rest, measured at the city's own elevation rather than corrected to sea level, and storm systems can push readings down to 875 hPa. Swings of 5-9 hPa over 24 hours are common during active weather and fall within the range most associated with pressure-triggered migraines.
2026 index: Bend is not one of the 100 metros ranked in our 2026 U.S. Migraine Risk Index, which shows how they compare.
Can Bend weather trigger migraines?
Yes. Bend experiences 5-9 hPa barometric pressure swings, and research shows pressure drops are one of the most common migraine triggers. The city's specific patterns include rain shadow pressure changes without precipitation, 20-degree daily temperature ranges, wildfire smoke during late summer.
What time of year are migraines worst in Bend?
In Bend the most barometrically volatile stretch of the year falls in January 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 Bend?
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 Bend 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 Bend. The MigrAid app learns yours. It saves the barometric pressure, humidity and temperature with every migraine you log, shows whether Bend's swings really line up with your attacks, and alerts you when conditions match your own trigger history.