Houston Pollen & Mold — Wednesday, May 21, 2025
Measured counts from the Houston Health Department
Pollen: Heavy. Mold: Heavy.
TreesLow
6 grains/m³
GrassHeavy
34 grains/m³
WeedsHeavy
56 grains/m³
MoldHeavy
14,320 spores/m³
This is an archived daily report. See today's Houston pollen count →