Name: Pollen forecast for Denver (2026-09-07)
Creator: Pollen Count
Published: 2026-09-07T16:34:27Z
License: https://pollencount.org/terms/

The pollen count in Denver today is X.HI, driven mainly by Giant Ragweed.

X.HI

18 active species

Refreshing live forecast…

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4-Day Forecast:

Morning

Grass LOW

Tree LOW

Weed HIGH

Afternoon

Grass MED

Tree LOW

Weed X.HI

Evening

Grass MED

Tree LOW

Weed V.HI

Species	Level	Count
🌿 Giant Ragweed	X.HI	52 grains/m³
🌿 Western Ragweed	HIGH	27 grains/m³
🌿 Common Ragweed	HIGH	25 grains/m³
🌾 Grass (mixed)	MED	16 grains/m³
🌿 Sagebrush	MED	13 grains/m³
+35 more tracked Timothy Grass Mugwort Bermuda Grass Cock's-foot Perennial Ryegrass Pellitory-of-the-wall Russian Thistle Pigweed Upright Pellitory Fat Hen Stinging Nettle Ribwort Plantain Common Sorrel Box Elder Alder 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
🌿 Giant Ragweed	V.HI	33 grains/m³
🌿 Western Ragweed	HIGH	17 grains/m³
🌿 Common Ragweed	HIGH	16 grains/m³
🌾 Grass (mixed)	MED	10 grains/m³
🌿 Sagebrush	MED	8 grains/m³
+35 more tracked Timothy Grass Mugwort Bermuda Grass Cock's-foot Perennial Ryegrass Pellitory-of-the-wall Upright Pellitory Russian Thistle Pigweed Fat Hen Stinging Nettle Ribwort Plantain Common Sorrel Box Elder Alder 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
🌿 Giant Ragweed	V.HI	36 grains/m³
🌿 Western Ragweed	HIGH	18 grains/m³
🌿 Common Ragweed	HIGH	17 grains/m³
🌾 Grass (mixed)	MED	12 grains/m³
🌿 Sagebrush	MED	9 grains/m³
+35 more tracked Timothy Grass Mugwort Bermuda Grass Cock's-foot Perennial Ryegrass Pellitory-of-the-wall Pigweed Upright Pellitory Russian Thistle Fat Hen Stinging Nettle Ribwort Plantain Common Sorrel Box Elder Alder 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
🌿 Giant Ragweed	X.HI	55 grains/m³
🌿 Western Ragweed	HIGH	28 grains/m³
🌿 Common Ragweed	HIGH	27 grains/m³
🌾 Grass (mixed)	HIGH	25 grains/m³
🌾 Timothy Grass	MED	19 grains/m³
+35 more tracked Bermuda Grass Cock's-foot Perennial Ryegrass Sagebrush Mugwort Pellitory-of-the-wall Upright Pellitory Russian Thistle Pigweed Fat Hen Stinging Nettle Ribwort Plantain Common Sorrel Box Elder Alder 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: 16:34 UTC

4-Day Forecast	Tree	Grass	Weed
Mon 7 Sep	LOW	MED	X.HI
Tue 8 Sep	LOW	MED	V.HI
Wed 9 Sep	LOW	MED	V.HI
Thu 10 Sep	LOW	HIGH	X.HI

Map of Denver (39.7392°, -104.9903°)

More in United States

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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