Houston Pollen & Mold — Thursday, March 12, 2026
Measured counts from the Houston Health Department
Pollen: Extremely heavy. Mold: Heavy.
TreesExtremely heavy
2,648 grains/m³
GrassNone
0 grains/m³
WeedsNone
0 grains/m³
MoldHeavy
13,516 spores/m³
This is an archived daily report. See today's Houston pollen count →