MED

13 active species

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4-Day Forecast:

Morning

Grass LOW

Tree LOW

Weed LOW

Afternoon

Grass MED

Tree LOW

Weed LOW

Evening

Grass MED

Tree LOW

Weed HIGH

Species	Level	Count
🌾 Grass (mixed)	MED	6 grains/m³
🌾 Timothy Grass	LOW	4 grains/m³
🌿 Mugwort	LOW	3 grains/m³
🌾 Cock's-foot	LOW	3 grains/m³
🌾 Perennial Ryegrass	LOW	3 grains/m³
+35 more tracked Pigweed Fat Hen Pellitory-of-the-wall Upright Pellitory Ribwort Plantain Common Sorrel Russian Thistle Stinging Nettle 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	12 grains/m³
🌾 Timothy Grass	MED	9 grains/m³
🌿 Mugwort	MED	8 grains/m³
🌾 Cock's-foot	MED	7 grains/m³
🌾 Perennial Ryegrass	MED	7 grains/m³
+35 more tracked Fat Hen Pellitory-of-the-wall Upright Pellitory Russian Thistle Stinging Nettle 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	8 grains/m³
🌾 Timothy Grass	MED	6 grains/m³
🌿 Mugwort	MED	5 grains/m³
🌾 Cock's-foot	MED	5 grains/m³
🌾 Perennial Ryegrass	LOW	4 grains/m³
+35 more tracked Pigweed Fat Hen Pellitory-of-the-wall Upright Pellitory Russian Thistle Stinging Nettle 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	10 grains/m³
🌾 Timothy Grass	MED	7 grains/m³
🌿 Mugwort	MED	6 grains/m³
🌾 Cock's-foot	MED	6 grains/m³
🌾 Perennial Ryegrass	MED	6 grains/m³
+35 more tracked Pigweed Fat Hen Pellitory-of-the-wall 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 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: 14:03 UTC

4-Day Forecast	Tree	Grass	Weed
Wed 20 May	LOW	MED	LOW
Thu 21 May	LOW	MED	MED
Fri 22 May	LOW	MED	MED
Sat 23 May	LOW	MED	MED

Map of Portland (45.5152°, -122.6784°)

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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