Houston Pollen & Mold — Wednesday, March 11, 2026
Measured counts from the Houston Health Department
Pollen: Extremely heavy. Mold: Medium.
TreesExtremely heavy
1,758 grains/m³
GrassLow
2 grains/m³
WeedsNone
0 grains/m³
MoldMedium
8,672 spores/m³
This is an archived daily report. See today's Houston pollen count →