Name: Pollen forecast for Chester (2026-09-01)
Creator: Pollen Count
Published: 2026-09-01T15:30:27Z
License: https://pollencount.org/terms/

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About Pollen in Chester

Chester experiences peak tree pollen March-May; Birch and Oak are dominant, sourced from Grosvenor Park and the city’s mature urban canopy. Grass pollen then prevails May-July, originating from extensive Chester Meadows and River Dee banks. The city’s walled geography can locally concentrate airborne allergens; rural Cheshire contributes additional pollen drift. Late-season mould spores escalate August-October, exacerbated by damp River Dee environments and decaying leaf litter.

The pollen count in Chester today is HIGH, driven mainly by Mugwort.

HIGH

15 active species

Refreshing live forecast…

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4-Day Forecast:

Morning

Grass MED

Tree LOW

Weed HIGH

Afternoon

Grass MED

Tree LOW

Weed HIGH

Evening

Grass LOW

Tree LOW

Weed MED

Species	Level	Count
🌿 Mugwort	HIGH	28 grains/m³
🌿 Giant Ragweed	HIGH	17 grains/m³
🌿 Common Ragweed	HIGH	16 grains/m³
🌾 Grass (mixed)	MED	13 grains/m³
🌿 Sagebrush	MED	10 grains/m³
+35 more tracked Timothy Grass Cock's-foot Perennial Ryegrass Russian Thistle Stinging Nettle Fat Hen Pigweed Ribwort Plantain Common Sorrel Western Ragweed Box Elder Alder Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Ash Mountain Cedar White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed London Plane Black Poplar Mesquite White Oak Holm Oak English Oak Field Elm All species in the app: Android iOS
🌿 Mugwort	HIGH	19 grains/m³
🌿 Giant Ragweed	MED	12 grains/m³
🌿 Common Ragweed	MED	11 grains/m³
🌿 Sagebrush	MED	7 grains/m³
🌿 Russian Thistle	MED	6 grains/m³
+35 more tracked Fat Hen Stinging Nettle Pigweed Ribwort Plantain Grass (mixed) Perennial Ryegrass Timothy Grass Common Sorrel Western Ragweed Cock's-foot Box Elder Alder Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Ash Mountain Cedar White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed London Plane Black Poplar Mesquite White Oak Holm Oak English Oak Field Elm All species in the app: Android iOS
🌿 Mugwort	V.HI	31 grains/m³
🌿 Giant Ragweed	HIGH	19 grains/m³
🌿 Common Ragweed	HIGH	18 grains/m³
🌾 Grass (mixed)	MED	15 grains/m³
🌿 Sagebrush	MED	12 grains/m³
+35 more tracked Timothy Grass Cock's-foot Perennial Ryegrass Russian Thistle Stinging Nettle Fat Hen Pigweed Ribwort Plantain Common Sorrel Western Ragweed Box Elder Alder Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Ash Mountain Cedar White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed London Plane Black Poplar Mesquite White Oak Holm Oak English Oak Field Elm All species in the app: Android iOS
🌿 Mugwort	HIGH	18 grains/m³
🌾 Grass (mixed)	MED	12 grains/m³
🌿 Common Ragweed	MED	11 grains/m³
🌿 Giant Ragweed	MED	11 grains/m³
🌾 Timothy Grass	MED	10 grains/m³
+35 more tracked Perennial Ryegrass Cock's-foot Sagebrush Russian Thistle Fat Hen Stinging Nettle Pigweed Ribwort Plantain Common Sorrel Western Ragweed Box Elder Alder Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Ash Mountain Cedar White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed London Plane Black Poplar Mesquite White Oak Holm Oak English Oak Field Elm All species in the app: Android iOS

Last updated: 15:30 UTC

4-Day Forecast	Tree	Grass	Weed
Tue 1 Sep	LOW	MED	HIGH
Wed 2 Sep	LOW	LOW	HIGH
Thu 3 Sep	LOW	MED	V.HI
Fri 4 Sep	LOW	MED	HIGH

Map of Chester (53.20114°, -2.880899°)

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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