MED

14 active species

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4-Day Forecast:

Morning

Grass LOW

Tree LOW

Weed LOW

Afternoon

Grass MED

Tree MED

Weed MED

Evening

Grass LOW

Tree LOW

Weed MED

Species	Level	Count
🌳 Olive	MED	15 grains/m³
🌿 Stinging Nettle	MED	6 grains/m³
🌿 Pellitory-of-the-wall	MED	5 grains/m³
🌿 Upright Pellitory	MED	5 grains/m³
🌾 Grass (mixed)	MED	5 grains/m³
+35 more tracked Pigweed Fat Hen Cock's-foot Perennial Ryegrass Timothy Grass Ribwort Plantain Bermuda Grass Common Sorrel Russian Thistle Box Elder Alder Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Hazel Japanese Cedar Mediterranean Cypress Ash Mountain Cedar White Mulberry Parthenium Weed London Plane Black Poplar Mesquite White Oak Holm Oak English Oak Field Elm All species in the app: Android iOS
🌳 Olive	MED	26 grains/m³
🌾 Grass (mixed)	HIGH	23 grains/m³
🌾 Cock's-foot	HIGH	22 grains/m³
🌾 Perennial Ryegrass	HIGH	22 grains/m³
🌾 Timothy Grass	MED	18 grains/m³
+35 more tracked Bermuda Grass Pellitory-of-the-wall Upright Pellitory Stinging Nettle Pigweed Ribwort Plantain Fat Hen Common Sorrel Russian Thistle Box Elder Alder Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Hazel Japanese Cedar Mediterranean Cypress Ash Mountain Cedar White Mulberry Parthenium Weed London Plane Black Poplar Mesquite White Oak Holm Oak English Oak Field Elm All species in the app: Android iOS
🌳 Olive	MED	18 grains/m³
🌾 Grass (mixed)	MED	8 grains/m³
🌾 Cock's-foot	MED	7 grains/m³
🌾 Perennial Ryegrass	MED	7 grains/m³
🌾 Timothy Grass	MED	6 grains/m³
+35 more tracked Bermuda Grass Pigweed Pellitory-of-the-wall Upright Pellitory Stinging Nettle Fat Hen Ribwort Plantain Russian Thistle Common Sorrel Box Elder Alder Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Hazel Japanese Cedar Mediterranean Cypress Ash Mountain Cedar White Mulberry Parthenium Weed London Plane Black Poplar Mesquite White Oak Holm Oak English Oak Field Elm All species in the app: Android iOS
🌳 Olive	LOW	2 grains/m³
🌳 Box Elder	LOW	-
🌳 Alder	LOW	-
🌿 Pigweed	LOW	-
🌿 Common Ragweed	LOW	-
+35 more tracked Western Ragweed Giant Ragweed Sagebrush Mugwort Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Fat Hen Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Cock's-foot Ash Mountain Cedar Perennial Ryegrass White Mulberry Pellitory-of-the-wall Upright Pellitory Parthenium Weed Timothy Grass Ribwort Plantain London Plane Grass (mixed) Black Poplar Mesquite White Oak Holm Oak English Oak Common Sorrel Russian Thistle Field Elm Stinging Nettle All species in the app: Android iOS

Last updated: 14:03 UTC

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

Map of Pittsburgh (40.4406°, -79.9959°)

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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