Name: Pollen forecast for Walsall (2026-05-20)
Creator: Pollen Count
Published: 2026-05-20T14:03:04Z
License: https://pollencount.org/terms/

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About Pollen in Walsall

Walsall’s allergy profile begins early spring (March-May) with peak Birch and Oak pollen counts emanating from Walsall Arboretum and extensive urban parklands; mid-to-late spring transitions into dominant Grass pollen, prevalent throughout summer (May-July), particularly from local meadows and River Tame floodplains. Walsall’s urban topography and sheltered green spaces can locally concentrate airborne allergens; autumn and winter periods see elevated Mould spore levels, primarily driven by damp leaf litter decomposition in parks and along the Walsall Canal.

HIGH

11 active species

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4-Day Forecast:

Morning

Grass LOW

Tree V.HI

Weed LOW

Afternoon

Grass LOW

Tree HIGH

Weed LOW

Evening

Grass LOW

Tree MED

Weed LOW

Species	Level	Count
🌳 Silver Birch	HIGH	80 grains/m³
🌳 Downy Birch	HIGH	54 grains/m³
🌳 Paper Birch	MED	42 grains/m³
🌳 Ash	MED	37 grains/m³
🌳 English Oak	MED	32 grains/m³
+35 more tracked Box Elder Black Poplar Field Elm White Oak Holm Oak London Plane Alder Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Australian Pine Japanese Cypress Fat Hen Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Cock's-foot Mountain Cedar Perennial Ryegrass White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed Timothy Grass Ribwort Plantain Grass (mixed) Mesquite Common Sorrel Russian Thistle Stinging Nettle All species in the app: Android iOS
🌳 Silver Birch	V.HI	111 grains/m³
🌳 Downy Birch	HIGH	76 grains/m³
🌳 Paper Birch	HIGH	58 grains/m³
🌳 Ash	HIGH	52 grains/m³
🌳 English Oak	MED	45 grains/m³
+35 more tracked Black Poplar Box Elder Field Elm White Oak Holm Oak London Plane Alder Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Australian Pine Japanese Cypress Fat Hen Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Cock's-foot Mountain Cedar Perennial Ryegrass White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed Timothy Grass Ribwort Plantain Grass (mixed) Mesquite Common Sorrel Russian Thistle Stinging Nettle All species in the app: Android iOS
🌳 Silver Birch	HIGH	87 grains/m³
🌳 Downy Birch	HIGH	59 grains/m³
🌳 Paper Birch	MED	46 grains/m³
🌳 Ash	MED	41 grains/m³
🌳 English Oak	MED	35 grains/m³
+35 more tracked Black Poplar Box Elder Field Elm White Oak Holm Oak London Plane Alder Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Australian Pine Japanese Cypress Fat Hen Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Cock's-foot Mountain Cedar Perennial Ryegrass White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed Timothy Grass Ribwort Plantain Grass (mixed) Mesquite Common Sorrel Russian Thistle Stinging Nettle All species in the app: Android iOS
🌳 Silver Birch	HIGH	90 grains/m³
🌳 Downy Birch	HIGH	62 grains/m³
🌳 Paper Birch	MED	48 grains/m³
🌳 Ash	MED	42 grains/m³
🌳 English Oak	MED	36 grains/m³
+35 more tracked Box Elder Black Poplar Field Elm White Oak Holm Oak London Plane Alder Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Australian Pine Japanese Cypress Fat Hen Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Cock's-foot Mountain Cedar Perennial Ryegrass White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed Timothy Grass Ribwort Plantain Grass (mixed) Mesquite Common Sorrel Russian Thistle Stinging Nettle All species in the app: Android iOS

Last updated: 14:03 UTC

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

Map of Walsall (52.558565°, -1.9743°)

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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