Name: Pollen forecast for Chicago (2026-10-16)
Creator: Pollen Count
Published: 2026-10-16T15:26:10Z
License: https://pollencount.org/terms/

The pollen count in Chicago today is low, driven mainly by Mugwort.

LOW

14 active species

Refreshing live forecast…

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4-Day Forecast:

Morning

Grass LOW

Tree LOW

Weed LOW

Afternoon

Grass LOW

Tree LOW

Weed LOW

Evening

Grass LOW

Tree LOW

Weed LOW

Species	Level	Count
🌿 Mugwort	LOW	4 grains/m³
🌾 Perennial Ryegrass	LOW	4 grains/m³
🌾 Timothy Grass	LOW	4 grains/m³
🌾 Grass (mixed)	LOW	4 grains/m³
🌾 Bermuda Grass	LOW	3 grains/m³
+35 more tracked Cock's-foot Pellitory-of-the-wall Pigweed Fat Hen Upright Pellitory Ribwort Plantain Russian Thistle Stinging Nettle Common Sorrel Box Elder Alder Common Ragweed Western Ragweed Giant Ragweed Sagebrush Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Hazel Japanese Cedar Mediterranean Cypress Ash Mountain Cedar White Mulberry Olive Parthenium Weed London Plane Black Poplar Mesquite White Oak Holm Oak English Oak Field Elm All species in the app: Android iOS
🌿 Mugwort	MED	6 grains/m³
🌾 Cock's-foot	MED	6 grains/m³
🌾 Perennial Ryegrass	MED	6 grains/m³
🌾 Timothy Grass	MED	6 grains/m³
🌾 Grass (mixed)	MED	6 grains/m³
+35 more tracked Bermuda Grass Pellitory-of-the-wall Upright Pellitory Russian Thistle Stinging Nettle Pigweed Fat Hen Ribwort Plantain Common Sorrel Box Elder Alder Common Ragweed Western Ragweed Giant Ragweed Sagebrush Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Hazel Japanese Cedar Mediterranean Cypress Ash Mountain Cedar White Mulberry Olive Parthenium Weed London Plane Black Poplar Mesquite White Oak Holm Oak English Oak Field Elm All species in the app: Android iOS
🌾 Grass (mixed)	MED	19 grains/m³
🌿 Mugwort	HIGH	18 grains/m³
🌾 Perennial Ryegrass	MED	18 grains/m³
🌾 Timothy Grass	MED	18 grains/m³
🌾 Cock's-foot	MED	17 grains/m³
+35 more tracked Bermuda Grass Pellitory-of-the-wall Upright Pellitory Russian Thistle Stinging Nettle Pigweed Fat Hen Ribwort Plantain Common Sorrel Box Elder Alder Common Ragweed Western Ragweed Giant Ragweed Sagebrush Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Hazel Japanese Cedar Mediterranean Cypress Ash Mountain Cedar White Mulberry Olive Parthenium Weed London Plane Black Poplar Mesquite White Oak Holm Oak English Oak Field Elm All species in the app: Android iOS
🌾 Perennial Ryegrass	MED	19 grains/m³
🌾 Grass (mixed)	MED	19 grains/m³
🌾 Timothy Grass	MED	18 grains/m³
🌾 Cock's-foot	MED	17 grains/m³
🌿 Mugwort	HIGH	16 grains/m³
+35 more tracked Bermuda Grass Pellitory-of-the-wall Upright Pellitory Russian Thistle Stinging Nettle Pigweed Fat Hen Ribwort Plantain Common Sorrel Box Elder Alder Common Ragweed Western Ragweed Giant Ragweed Sagebrush Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Hazel Japanese Cedar Mediterranean Cypress Ash Mountain Cedar White Mulberry Olive Parthenium Weed London Plane Black Poplar Mesquite White Oak Holm Oak English Oak Field Elm All species in the app: Android iOS

Last updated: 15:26 UTC

4-Day Forecast	Tree	Grass	Weed
Fri 16 Oct	LOW	LOW	LOW
Sat 17 Oct	LOW	MED	MED
Sun 18 Oct	LOW	MED	HIGH
Mon 19 Oct	LOW	MED	HIGH

Map of Chicago (41.8781°, -87.6298°)

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What Pollen Levels Mean

LOW Symptoms are unlikely

MED Moderate risk of symptoms

HIGH Widespread symptoms likely

V.HI Expect significant symptoms

X.HI Extremely high symptom likelihood & severity