Name: Pollen forecast for Rotherham (2026-10-17)
Creator: Pollen Count
Published: 2026-10-17T14:18:28Z
License: https://pollencount.org/terms/

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About Pollen in Rotherham

Rotherham’s seasonal allergy profile is pronounced: March-April sees high Birch and Alder pollen from urban trees and River Don floodplain areas; April-May, Oak pollen dominates from local woodlands and parkland, including Clifton Park. Late spring to summer, May-July, grass pollen peaks across extensive local meadows, sports fields, and the banks of the River Don and River Rother.

The town’s valley topography, particularly the River Don corridor, can trap and concentrate airborne pollen. Autumn, September-November, brings elevated mould spore counts, originating from decaying leaf litter and damp vegetation prevalent in parks and shaded residential zones.

The pollen count in Rotherham today is moderate, driven mainly by Perennial Ryegrass.

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 LOW

Species	Level	Count
🌾 Perennial Ryegrass	MED	6 grains/m³
🌾 Grass (mixed)	MED	6 grains/m³
🌿 Western Ragweed	MED	5 grains/m³
🌿 Mugwort	MED	5 grains/m³
🌾 Cock's-foot	MED	5 grains/m³
+35 more tracked Timothy Grass Giant Ragweed Sagebrush Stinging Nettle Pigweed Fat Hen Ribwort Plantain Common Sorrel Russian Thistle Box Elder Alder Common Ragweed 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
🌿 Western Ragweed	MED	5 grains/m³
🌿 Mugwort	LOW	4 grains/m³
🌾 Cock's-foot	LOW	4 grains/m³
🌾 Perennial Ryegrass	LOW	4 grains/m³
🌾 Timothy Grass	LOW	4 grains/m³
+35 more tracked Grass (mixed) Giant Ragweed Pigweed Sagebrush Fat Hen Ribwort Plantain Russian Thistle Stinging Nettle Common Sorrel Box Elder Alder Common Ragweed 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
🌿 Western Ragweed	HIGH	28 grains/m³
🌿 Mugwort	HIGH	27 grains/m³
🌿 Giant Ragweed	HIGH	18 grains/m³
🌿 Sagebrush	HIGH	15 grains/m³
🌿 Stinging Nettle	HIGH	15 grains/m³
+35 more tracked Russian Thistle Pigweed Fat Hen Ribwort Plantain Perennial Ryegrass Grass (mixed) Common Sorrel Cock's-foot Timothy Grass Box Elder Alder Common Ragweed 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
🌿 Western Ragweed	MED	5 grains/m³
🌿 Mugwort	MED	5 grains/m³
🌿 Giant Ragweed	LOW	3 grains/m³
🌿 Sagebrush	LOW	3 grains/m³
🌾 Cock's-foot	LOW	3 grains/m³
+35 more tracked Perennial Ryegrass Timothy Grass Grass (mixed) Stinging Nettle Pigweed Fat Hen Ribwort Plantain Russian Thistle Common Sorrel Box Elder Alder Common Ragweed 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: 14:18 UTC

4-Day Forecast	Tree	Grass	Weed
Sat 17 Oct	LOW	MED	MED
Sun 18 Oct	LOW	LOW	MED
Mon 19 Oct	LOW	MED	HIGH
Tue 20 Oct	LOW	LOW	MED

Map of Rotherham (53.431168°, -1.354447°)

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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