Name: Pollen forecast for Washington, D.C. (2026-09-07)
Creator: Pollen Count
Published: 2026-09-07T16:34:26Z
License: https://pollencount.org/terms/

The pollen count in Washington, D.C. today is HIGH, driven mainly by Giant Ragweed.

HIGH

17 active species

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4-Day Forecast:

Morning

Grass LOW

Tree LOW

Weed MED

Afternoon

Grass MED

Tree LOW

Weed HIGH

Evening

Grass MED

Tree LOW

Weed X.HI

Species	Level	Count
🌿 Giant Ragweed	HIGH	26 grains/m³
🌿 Western Ragweed	MED	11 grains/m³
🌿 Common Ragweed	MED	8 grains/m³
🌾 Grass (mixed)	MED	7 grains/m³
🌾 Cock's-foot	MED	6 grains/m³
+35 more tracked Mugwort Bermuda Grass Perennial Ryegrass Pellitory-of-the-wall Upright Pellitory Timothy Grass Pigweed Fat Hen Ribwort Plantain Russian Thistle Stinging Nettle Common Sorrel Box Elder Alder 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
🌿 Giant Ragweed	V.HI	32 grains/m³
🌿 Western Ragweed	MED	14 grains/m³
🌿 Common Ragweed	MED	10 grains/m³
🌾 Grass (mixed)	MED	8 grains/m³
🌾 Cock's-foot	MED	7 grains/m³
+35 more tracked Mugwort Bermuda Grass Perennial Ryegrass Pellitory-of-the-wall Timothy Grass Fat Hen Upright Pellitory Russian Thistle Pigweed Ribwort Plantain Stinging Nettle Common Sorrel Box Elder Alder 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
🌿 Giant Ragweed	X.HI	59 grains/m³
🌿 Western Ragweed	HIGH	25 grains/m³
🌿 Common Ragweed	HIGH	19 grains/m³
🌾 Grass (mixed)	MED	15 grains/m³
🌾 Cock's-foot	MED	13 grains/m³
+35 more tracked Mugwort Perennial Ryegrass Bermuda Grass Pellitory-of-the-wall Timothy Grass Upright Pellitory Fat Hen Russian Thistle Pigweed Ribwort Plantain Stinging Nettle Common Sorrel Box Elder Alder 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
🌿 Giant Ragweed	X.HI	51 grains/m³
🌿 Western Ragweed	HIGH	22 grains/m³
🌿 Common Ragweed	HIGH	17 grains/m³
🌾 Grass (mixed)	MED	15 grains/m³
🌾 Cock's-foot	MED	14 grains/m³
+35 more tracked Perennial Ryegrass Bermuda Grass Mugwort Timothy Grass Pellitory-of-the-wall Upright Pellitory Pigweed Fat Hen Russian Thistle Ribwort Plantain Stinging Nettle Common Sorrel Box Elder Alder 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: 16:34 UTC

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

Map of Washington, D.C. (38.9072°, -77.0369°)

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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