High Pollen in Duluth, MN

High today, mostly weed pollen.

Last updated August 14, 2026

Today's index4out of 5High
WeedHighin season

Driving it today

Ragweed

Forecast

Sat
1
Sun
4
Mon
4
Tue
4

About pollen in Duluth

Weed pollen is the main driver of today's conditions in Duluth, and levels are high enough to be noticeable for anyone with sensitivities. This is the pollen type to plan around if you tend to react to ragweed and similar plants, as symptoms could be more pronounced than usual during outdoor activities. Looking ahead, weed pollen is expected to ease briefly tomorrow before climbing back to high levels for the rest of the five-day stretch. This pattern fits the season well, as August marks the heart of ragweed activity across the region, with counts typically staying elevated into early fall. Tree pollen from species like birch and oak, which dominate the local landscape earlier in the year, has long since wound down, leaving weeds as the primary concern for allergy sufferers right now.

What to do today

  • Avoid mowing the lawn and raking leaves.
  • When driving the car, close your windows and turn the air conditioning system to recirculation mode.
  • Keep your windows closed and turn on your air purifier or air conditioning.
  • Consider staying indoors during the peak pollen hours (morning and early afternoon).

Common questions

What is the pollen count in Duluth, MN today?
Duluth, MN is at a high 4 out of 5 on the Universal Pollen Index today, driven mainly by weed pollen. Over the next five days it ranges from 1 to 4 of 5.
Is weed pollen high in Duluth, MN right now?
Weed pollen is high today at 4 of 5, and it's in season now. Many allergy sufferers will have symptoms.
What plants are causing allergies in Duluth, MN?
The main sources right now are Ragweed. Ragweed (Asteraceae (the daisy family), Late summer, fall) is actively pollinating.