Name: Pollen forecast for Cheltenham (2026-10-17)
Creator: Pollen Count
Published: 2026-10-17T14:18:15Z
License: https://pollencount.org/terms/

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About Pollen in Cheltenham

Cheltenham experiences significant seasonal allergies; dominant spring tree pollens, Birch and Oak, are prevalent from March to May, dispersing from mature urban parklands like Pittville Park and Imperial Gardens; summer grass pollen peaks June through July, originating from the River Chelt’s floodplains and surrounding Cotswold meadows. Cheltenham’s valley location, nestled by the Cotswolds, can concentrate airborne pollen, intensifying local impact; autumn’s allergen profile shifts to mould spores, heightened from September onwards, arising from damp leaf litter decomposition in shaded park areas and local woodlands.

The pollen count in Cheltenham today is moderate, driven mainly by Mugwort.

MED

13 active species

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4-Day Forecast:

Morning

Grass LOW

Tree LOW

Weed LOW

Afternoon

Grass LOW

Tree LOW

Weed MED

Evening

Grass LOW

Tree LOW

Weed HIGH

Species	Level	Count
🌿 Mugwort	MED	11 grains/m³
🌿 Western Ragweed	MED	5 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) Stinging Nettle Pigweed Sagebrush Fat Hen Ribwort Plantain Russian Thistle Common Sorrel Box Elder Alder Common Ragweed Giant 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
🌿 Mugwort	MED	9 grains/m³
🌾 Perennial Ryegrass	MED	5 grains/m³
🌾 Grass (mixed)	MED	5 grains/m³
🌿 Western Ragweed	LOW	4 grains/m³
🌾 Cock's-foot	LOW	4 grains/m³
+35 more tracked Timothy Grass Russian Thistle Stinging Nettle Pigweed Sagebrush Fat Hen Ribwort Plantain Common Sorrel Box Elder Alder Common Ragweed Giant 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
🌿 Mugwort	V.HI	42 grains/m³
🌿 Western Ragweed	HIGH	17 grains/m³
🌿 Stinging Nettle	MED	14 grains/m³
🌾 Perennial Ryegrass	MED	13 grains/m³
🌾 Grass (mixed)	MED	13 grains/m³
+35 more tracked Cock's-foot Timothy Grass Russian Thistle Pigweed Fat Hen Ribwort Plantain Sagebrush Common Sorrel Box Elder Alder Common Ragweed Giant 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
🌿 Mugwort	MED	11 grains/m³
🌿 Western Ragweed	MED	5 grains/m³
🌿 Stinging Nettle	LOW	4 grains/m³
🌿 Pigweed	LOW	3 grains/m³
🌿 Sagebrush	LOW	3 grains/m³
+35 more tracked Fat Hen Ribwort Plantain Russian Thistle Perennial Ryegrass Grass (mixed) Common Sorrel Cock's-foot Timothy Grass Box Elder Alder Common Ragweed Giant 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	LOW	MED
Sun 18 Oct	LOW	MED	MED
Mon 19 Oct	LOW	MED	V.HI
Tue 20 Oct	LOW	LOW	MED

Map of Cheltenham (51.896785°, -2.084904°)

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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