Pollen Count in Houston, TX — Today
Updated Tuesday, October 20, 2026
Total Pollen Index: 19 / 100 (Low)
Dominant allergen today: Ragweed
Pollen and mold levels
- Tree pollen: 1.1 (Low)
- Grass pollen: 0.8 (Low)
- Weed pollen (ragweed): 6.1 (High)
- Mold: 1.2 (Low)
See how Houston ranks against the worst pollen cities today
Pollen indexes: AccuWeather data via Pollen Atlas. Plant detail: Google Pollen API. Figures update through the day.