Houston Pollen & Mold — Friday, August 21, 2026
Measured counts from the Houston Health Department
Pollen: Medium. Mold: Low.
TreesNone
0 grains/m³
GrassLow
4 grains/m³
WeedsMedium
18 grains/m³
MoldLow
2,703 spores/m³
This is an archived daily report. See today's Houston pollen count →