Name: Pollen forecast for Seattle (2026-10-22)
Creator: Pollen Count
Published: 2026-10-22T15:56:44Z
License: https://pollencount.org/terms/

The pollen count in Seattle today is moderate, driven mainly by Grass (mixed).

MED

13 active species

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4-Day Forecast:

Morning

Grass MED

Tree LOW

Weed LOW

Afternoon

Grass MED

Tree LOW

Weed MED

Evening

Grass LOW

Tree LOW

Weed MED

Species	Level	Count
🌾 Grass (mixed)	MED	12 grains/m³
🌾 Perennial Ryegrass	MED	11 grains/m³
🌾 Timothy Grass	MED	11 grains/m³
🌾 Cock's-foot	MED	10 grains/m³
🌿 Mugwort	MED	9 grains/m³
+35 more tracked Pellitory-of-the-wall Upright Pellitory Stinging Nettle Pigweed Fat Hen Ribwort Plantain Russian Thistle 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 Bermuda Grass 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	LOW	4 grains/m³
🌾 Cock's-foot	LOW	3 grains/m³
🌾 Perennial Ryegrass	LOW	3 grains/m³
🌿 Pellitory-of-the-wall	LOW	3 grains/m³
🌿 Upright Pellitory	LOW	3 grains/m³
+35 more tracked Timothy Grass Grass (mixed) Pigweed Fat Hen 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 Bermuda Grass 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	12 grains/m³
🌾 Grass (mixed)	MED	12 grains/m³
🌾 Perennial Ryegrass	MED	11 grains/m³
🌾 Timothy Grass	MED	11 grains/m³
🌾 Cock's-foot	MED	10 grains/m³
+35 more tracked Pellitory-of-the-wall Upright Pellitory Stinging Nettle Fat Hen Russian Thistle Pigweed 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 Bermuda Grass 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
🌾 Perennial Ryegrass	MED	17 grains/m³
🌾 Timothy Grass	MED	17 grains/m³
🌾 Cock's-foot	MED	16 grains/m³
🌿 Mugwort	HIGH	15 grains/m³
+35 more tracked Pellitory-of-the-wall Upright Pellitory Stinging Nettle Pigweed Fat Hen Ribwort Plantain Russian Thistle 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 Bermuda Grass 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: 15:56 UTC

4-Day Forecast	Tree	Grass	Weed
Thu 22 Oct	LOW	MED	MED
Fri 23 Oct	LOW	LOW	LOW
Sat 24 Oct	LOW	MED	MED
Sun 25 Oct	LOW	MED	HIGH

Map of Seattle (47.6062°, -122.3321°)

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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