Houston Pollen & Mold — Thursday, March 19, 2026
Measured counts from the Houston Health Department
Pollen: Heavy. Mold: Low.
TreesHeavy
565 grains/m³
GrassNone
0 grains/m³
WeedsNone
0 grains/m³
MoldLow
3,230 spores/m³
This is an archived daily report. See today's Houston pollen count →