Moderate Pollen in Highlands Ranch, CO
Moderate today, mostly weed pollen.
Last updated August 14, 2026
Driving it today
Forecast
About pollen in Highlands Ranch
Weed pollen is the main story in Highlands Ranch today, sitting at a moderate level that sensitive individuals will likely notice, especially during outdoor activities in the afternoon. Tree pollen, by contrast, is essentially a non-issue right now, registering very low and unlikely to cause much trouble for anyone. Looking ahead, weed pollen is expected to climb steadily over the next several days, moving from moderate into high and eventually very high territory by the end of the stretch. This tracks with what's typical for mid-August in the region, as ragweed and other late-summer weeds ramp up production while trees like cottonwood, aspen, and pine stay quiet this time of year. Anyone who reacts to weed pollen should expect conditions to become more noticeable as the week progresses.
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.
Common questions
- What is the pollen count in Highlands Ranch, CO today?
- Highlands Ranch, CO is at a moderate 3 out of 5 on the Universal Pollen Index today, driven mainly by weed pollen. Over the next five days it ranges from 3 to 5 of 5.
- Is weed pollen high in Highlands Ranch, CO right now?
- Weed pollen is moderate today at 3 of 5, and it's past its peak season. Sensitive people may notice symptoms.
- What plants are causing allergies in Highlands Ranch, CO?
- The main sources right now are Elm. Elm (Ulmaceae (the Elm family), Two distinct seasons, late winter to early spring, and late summer to fall (species dependent)) is actively pollinating.