Houston Pollen & Mold — Monday, March 23, 2026
Measured counts from the Houston Health Department
Pollen: Extremely heavy. Mold: Medium.
TreesExtremely heavy
3,071 grains/m³
GrassLow
4 grains/m³
WeedsLow
2 grains/m³
MoldMedium
6,644 spores/m³
This is an archived daily report. See today's Houston pollen count →