Houston Pollen & Mold — Friday, November 21, 2025
Measured counts from the Houston Health Department
Pollen: Low. Mold: Heavy.
TreesLow
6 grains/m³
GrassLow
2 grains/m³
WeedsLow
8 grains/m³
MoldHeavy
14,089 spores/m³
This is an archived daily report. See today's Houston pollen count →