Name: Pollen forecast for Warrington (2026-09-01)
Creator: Pollen Count
Published: 2026-09-01T15:30:46Z
License: https://pollencount.org/terms/

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About Pollen in Warrington

Warrington’s spring pollen season, March-May, is dominated by Birch, Oak, and Ash; peak concentrations emanate from urban woodlands like Sankey Valley Park and Walton Hall Gardens. Summer, May-July, sees high grass pollen from abundant riverine meadows along the Mersey and open parklands.

The city’s basin topography and dense urbanisation can trap airborne particulates, elevating localised pollen counts; late autumn to winter brings mould spores, exacerbated by damp leaf litter decomposition in wooded areas and wetlands such as Risley Moss.

The pollen count in Warrington 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 MED

Afternoon

Grass MED

Tree LOW

Weed HIGH

Evening

Grass LOW

Tree LOW

Weed MED

Species	Level	Count
🌿 Mugwort	HIGH	24 grains/m³
🌿 Common Ragweed	HIGH	16 grains/m³
🌿 Giant Ragweed	HIGH	16 grains/m³
🌾 Perennial Ryegrass	MED	10 grains/m³
🌾 Grass (mixed)	MED	10 grains/m³
+35 more tracked Cock's-foot Timothy Grass Stinging Nettle Pigweed Fat Hen Russian Thistle Ribwort Plantain Common Sorrel Western Ragweed Sagebrush 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	17 grains/m³
🌿 Common Ragweed	MED	12 grains/m³
🌿 Giant Ragweed	MED	11 grains/m³
🌿 Stinging Nettle	MED	5 grains/m³
🌿 Pigweed	LOW	4 grains/m³
+35 more tracked Fat Hen Ribwort Plantain Russian Thistle Common Sorrel Western Ragweed Sagebrush Cock's-foot Perennial Ryegrass Timothy Grass Grass (mixed) 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	26 grains/m³
🌿 Common Ragweed	HIGH	18 grains/m³
🌿 Giant Ragweed	HIGH	17 grains/m³
🌾 Cock's-foot	MED	10 grains/m³
🌾 Perennial Ryegrass	MED	10 grains/m³
+35 more tracked Timothy Grass Grass (mixed) Stinging Nettle Russian Thistle Pigweed Fat Hen Ribwort Plantain Sagebrush 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	15 grains/m³
🌿 Common Ragweed	MED	10 grains/m³
🌿 Giant Ragweed	MED	10 grains/m³
🌾 Perennial Ryegrass	MED	8 grains/m³
🌾 Grass (mixed)	MED	8 grains/m³
+35 more tracked Cock's-foot Timothy Grass Fat Hen Russian Thistle Stinging Nettle Pigweed Ribwort Plantain Western Ragweed Sagebrush Common Sorrel 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	HIGH
Fri 4 Sep	LOW	MED	HIGH

Map of Warrington (53.399218°, -2.674576°)

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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