MED

14 active species

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4-Day Forecast:

Morning

Grass LOW

Tree LOW

Weed LOW

Afternoon

Grass MED

Tree LOW

Weed MED

Evening

Grass LOW

Tree LOW

Weed MED

Species	Level	Count
🌿 Mugwort	MED	14 grains/m³
🌾 Grass (mixed)	MED	7 grains/m³
🌿 Fat Hen	MED	6 grains/m³
🌿 Pellitory-of-the-wall	MED	6 grains/m³
🌿 Russian Thistle	MED	6 grains/m³
+35 more tracked Pigweed Upright Pellitory Cock's-foot Perennial Ryegrass Ribwort Plantain Stinging Nettle Bermuda Grass Timothy Grass 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	15 grains/m³
🌾 Cock's-foot	MED	11 grains/m³
🌾 Perennial Ryegrass	MED	10 grains/m³
🌾 Bermuda Grass	MED	9 grains/m³
+35 more tracked Timothy Grass Fat Hen Pellitory-of-the-wall Russian Thistle Pigweed Upright Pellitory Ribwort Plantain 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	LOW	4 grains/m³
🌿 Pigweed	LOW	2 grains/m³
🌿 Fat Hen	LOW	2 grains/m³
🌿 Pellitory-of-the-wall	LOW	2 grains/m³
🌿 Upright Pellitory	LOW	2 grains/m³
+35 more tracked Grass (mixed) Russian Thistle Bermuda Grass Cock's-foot Perennial Ryegrass Timothy Grass Ribwort Plantain Common Sorrel 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 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	11 grains/m³
🌾 Grass (mixed)	MED	5 grains/m³
🌿 Pigweed	LOW	4 grains/m³
🌿 Fat Hen	LOW	4 grains/m³
🌿 Pellitory-of-the-wall	LOW	4 grains/m³
+35 more tracked Upright Pellitory Russian Thistle Cock's-foot Ribwort Plantain Stinging Nettle Bermuda Grass Perennial Ryegrass Timothy Grass 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: 14:03 UTC

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

Map of Louisville (38.2527°, -85.7585°)

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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