Moderate Pollen in Naperville, IL
Moderate today, mostly weed pollen.
Last updated September 29, 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 Naperville
Weed pollen is the main driver of today's conditions in Naperville, sitting at a moderate level. This is enough to be noticeable for those who tend to react to ragweed and similar late-season weeds, with symptoms like sneezing or itchy eyes possible during extended time outdoors, though most people should find it manageable. Looking ahead, the moderate weed pollen level is expected to hold steady through the next several days without much change. This fits the seasonal pattern for late September, as ragweed remains the dominant source of pollen this time of year while tree species like oak and maple stay dormant until spring and grasses have largely wound down for the season.
Common questions
- What is the pollen count in Naperville, IL today?
- Naperville, IL is at a moderate 3 out of 5 on the Universal Pollen Index today, driven mainly by weed pollen. The five-day outlook holds steady around 3 of 5.
- Is weed pollen high in Naperville, IL right now?
- Weed pollen is moderate today at 3 of 5, and it's past its peak season. Sensitive people may notice symptoms.