Was October 24, 2026 allergy season in Hillsboro?
KINDA
Kinda — ragweed is done after a 30°F morning, but damp fallen leaves keep mold season running.
Why
- Overnight low hit 30.2°F; frost ends ragweed's run
- Oregon ragweed peaks late August through early October
- Tomorrow: 5.2 mm drizzle, ideal for mold spores