Houston Pollen & Mold — Monday, March 16, 2026
Measured counts from the Houston Health Department
Pollen: Extremely heavy. Mold: Medium.
TreesExtremely heavy
4,294 grains/m³
GrassMedium
10 grains/m³
WeedsNone
0 grains/m³
MoldMedium
11,667 spores/m³
This is an archived daily report. See today's Houston pollen count →