Houston Pollen & Mold — Monday, September 21, 2026
Measured counts from the Houston Health Department
Pollen: Medium. Mold: Medium.
TreesNone
0 grains/m³
GrassNone
0 grains/m³
WeedsMedium
46 grains/m³
MoldMedium
7,545 spores/m³
This is an archived daily report. See today's Houston pollen count →