Name: Pollen forecast for Lancaster (2026-10-17)
Creator: Pollen Count
Published: 2026-10-17T14:18:23Z
License: https://pollencount.org/terms/

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About Pollen in Lancaster

Birch pollen peaks March-April, highly concentrated in Williamson Park and Lancaster University grounds; Oak pollen follows into May, prominent across urban woodland fringes; Grass pollen dominates June-July, sourced from River Lune floodplains, canal towpaths, and adjacent agricultural fields.

Lancaster’s valley topography and Morecambe Bay proximity can concentrate pollen locally; autumnal mould spores increase September-November, driven by damp leaf litter decomposition in parks and shaded urban spaces.

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

MED

13 active species

Refreshing live forecast…

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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 MED

Species	Level	Count
🌿 Mugwort	MED	14 grains/m³
🌿 Western Ragweed	MED	9 grains/m³
🌿 Giant Ragweed	MED	6 grains/m³
🌿 Stinging Nettle	MED	5 grains/m³
🌾 Cock's-foot	LOW	4 grains/m³
+35 more tracked Perennial Ryegrass Timothy Grass Ribwort Plantain Grass (mixed) Pigweed Fat Hen Common Sorrel Russian Thistle Box Elder Alder Common Ragweed Sagebrush 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	7 grains/m³
🌿 Giant Ragweed	MED	5 grains/m³
🌾 Cock's-foot	MED	5 grains/m³
🌾 Perennial Ryegrass	MED	5 grains/m³
+35 more tracked Timothy Grass Grass (mixed) Stinging Nettle Pigweed Fat Hen Ribwort Plantain Common Sorrel Russian Thistle Box Elder Alder Common Ragweed Sagebrush 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
🌿 Western Ragweed	MED	11 grains/m³
🌿 Giant Ragweed	MED	7 grains/m³
🌾 Perennial Ryegrass	MED	6 grains/m³
🌾 Grass (mixed)	MED	6 grains/m³
+35 more tracked Stinging Nettle Cock's-foot Timothy Grass Pigweed Fat Hen Ribwort Plantain Common Sorrel Russian Thistle Box Elder Alder Common Ragweed Sagebrush 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	8 grains/m³
🌿 Western Ragweed	MED	5 grains/m³
🌿 Giant Ragweed	LOW	3 grains/m³
🌿 Stinging Nettle	LOW	3 grains/m³
🌿 Pigweed	LOW	2 grains/m³
+35 more tracked Fat Hen Cock's-foot Perennial Ryegrass Timothy Grass Ribwort Plantain Grass (mixed) Common Sorrel Russian Thistle Box Elder Alder Common Ragweed Sagebrush 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	HIGH
Tue 20 Oct	LOW	LOW	MED

Map of Lancaster (54.043863°, -2.795905°)

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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