Pollen in Longmont, CO
No notable pollen right now.
Last updated July 28, 2026
Forecast
About pollen in Longmont
Pollen conditions in Longmont are calm today, with nothing significant enough to cause widespread discomfort. If you do notice any irritation, it is likely to be mild and brief rather than a sign of heavy pollen activity in the area. Looking ahead, late July typically sits in a quieter stretch for pollen in Colorado's Front Range. The spring tree season—driven by cottonwoods, elms, and ashes—has long since wound down, and grass pollen, while still possible this time of year, tends to ease as summer progresses. The bigger seasonal shift to watch for is ragweed and other weed pollens, which usually begin building later in August and into fall. For now, conditions should stay relatively comfortable for most people.
Common questions
- What is the pollen count in Longmont, CO today?
- Longmont, CO has no notable tree, grass, or weed pollen today.