Very Low Pollen in Sioux City, IA
Very low today, mostly weed pollen.
Last updated September 29, 2026
What to do today
- Pollen levels are very low right now. It's a great day to enjoy the outdoors!
Forecast
About pollen in Sioux City
Pollen levels around Sioux City are quiet today, with weed pollen the only real presence, and even that is barely registering. Anyone sensitive to ragweed and similar late-season weeds should find today easy to manage, with little in the way of irritation expected. Looking ahead, that calm is likely temporary. Weed pollen is expected to climb noticeably over the next couple of days before easing again slightly toward the end of the stretch. This tracks with the typical pattern for late September, when ragweed is the dominant pollen source in the region as summer transitions into fall. Tree pollen, tied to species like oak, elm, and cottonwood, is well past its spring peak and not a factor right now, so weeds remain the main thing to keep an eye on this week.
Common questions
- What is the pollen count in Sioux City, IA today?
- Sioux City, IA is at a very low 1 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 Sioux City, IA right now?
- Weed pollen is very low today at 1 of 5, and it's past its peak season. Most people won't notice it.