Low Pollen in Ann Arbor, MI
Low today, mostly weed pollen.
Last updated September 29, 2026
Today's indexLow
WeedLowoff-season
What to do today
- It's a good day for outdoor activities since pollen levels are low.
- Do you know which plants cause your pollen allergy? Check out the pollen data to be prepared.
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About pollen in Ann Arbor
Weed pollen is the only type active in Ann Arbor today, and it remains at a low level. Most people should get through the day without much irritation, though those who are especially sensitive to ragweed and similar late-season weeds may notice mild symptoms, particularly outdoors in the afternoon. Looking ahead, weed pollen is expected to hold steady at this same low level through the next several days, so no significant change is on the way. This fits the typical pattern for late September, as ragweed continues its gradual decline heading into autumn while tree pollen from species like oak and maple stays dormant until spring and grasses remain quiet until next summer.
Common questions
- What is the pollen count in Ann Arbor, MI today?
- Ann Arbor, MI is at a low 2 out of 5 on the Universal Pollen Index today, driven mainly by weed pollen. The five-day outlook holds steady around 2 of 5.
- Is weed pollen high in Ann Arbor, MI right now?
- Weed pollen is low today at 2 of 5, and it's past its peak season. Most people won't have symptoms.