Moderate Pollen in Columbia, MD
Moderate today, mostly weed pollen.
Last updated September 30, 2026
Driving it today
Forecast
About pollen in Columbia
Weed pollen is the main driver of today's conditions in Columbia, sitting at a moderate level. Those sensitive to ragweed and similar late-season weeds will likely notice some effect, particularly with outdoor activity, though symptoms should stay manageable for most people. Looking ahead, weed pollen is expected to tick up slightly over the next couple of days before easing back down, with a sharp drop off by the end of the five-day stretch as conditions quiet considerably. This pattern fits the season well, since late September marks a typical peak for ragweed and other fall weeds in the region. Tree pollen from familiar local species like oak and maple remains dormant this time of year, with their more active period not returning until spring.
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 Columbia, MD today?
- Columbia, MD 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 0 to 4 of 5.
- Is weed pollen high in Columbia, MD right now?
- Weed pollen is moderate today at 3 of 5, and it's in season now. Sensitive people may notice symptoms.
- What plants are causing allergies in Columbia, MD?
- The main sources right now are Ragweed. Ragweed (Asteraceae (the daisy family), Late summer, fall) is actively pollinating.