High Pollen in Salt Lake City, UT

High today, mostly weed pollen.

Last updated September 29, 2026

Today's index4out of 5High
WeedHighin season

Driving it today

Ragweed

Forecast

Wed
4
Thu
4
Fri
4
Sat
3

About pollen in Salt Lake City

Weed pollen is running high in Salt Lake City today, and it is the main driver of allergy discomfort right now. Anyone sensitive to ragweed and related weeds should expect symptoms to be fairly noticeable, particularly during outdoor activities in the afternoon when pollen tends to circulate most. Looking ahead, weed pollen is expected to hold steady at a high level for the next several days before easing slightly toward the end of the stretch. This lines up with the typical seasonal pattern for late September, when ragweed and other fall weeds are at their peak in the valley. Tree pollen from species like cottonwood, elm, and juniper is not a concern this time of year, since those plants typically release pollen in spring, well before the current weed season takes hold.

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 Salt Lake City, UT today?
Salt Lake City, UT 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 3 to 4 of 5.
Is weed pollen high in Salt Lake City, UT 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 Salt Lake City, UT?
The main sources right now are Ragweed. Ragweed (Asteraceae (the daisy family), Late summer, fall) is actively pollinating.