Moderate Pollen in Boulder, CO
Moderate today, mostly grass pollen.
Last updated July 9, 2026
What to do today
- It's important to shower and wash your hair after spending a lot of time outdoors.
- When spending time outside, use sunglasses and a cap to keep pollen out of your face and eyes.
- Wash clothes worn outdoors to remove any remnants of pollen grains.
- If possible, wear glasses instead of contact lenses.
- Did you hang any laundry outside? Now is a good time to hang clothes indoors or use a dryer if possible.
Forecast
About pollen in Boulder
Grass pollen is the main story in Boulder today, sitting at a moderate level that those with sensitivities will likely notice, especially during outdoor activity in the afternoon. Tree pollen, by contrast, is nearly a non-issue right now, contributing little to how the air feels overall. Looking ahead, grass levels should ease slightly over the next several days, settling into a lighter but still noticeable range, while tree pollen is expected to stay quiet throughout. This lines up with the typical seasonal pattern for the area — cottonwood, pine, and other trees common to the Front Range had their peak months ago, and summer is now grass pollen's season to shine before ragweed and other weeds take over later in the year.
Common questions
- What is the pollen count in Boulder, CO today?
- Boulder, CO is at a moderate 3 out of 5 on the Universal Pollen Index today, driven mainly by grass pollen. Over the next five days it ranges from 2 to 3 of 5.
- Is grass pollen high in Boulder, CO right now?
- Grass pollen is moderate today at 3 of 5, and it's past its peak season. Sensitive people may notice symptoms.