Name: Pollen forecast for Grimsby (2026-10-17)
Creator: Pollen Count
Published: 2026-10-17T14:18:19Z
License: https://pollencount.org/terms/

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About Pollen in Grimsby

Grimsby experiences peak tree pollen from March to May, primarily Birch and Oak, originating from People’s Park, Grant Thorold Park, and residential street trees; Grass pollen dominates May through July, sourced from River Freshney embankments, surrounding agricultural fields, and urban green verges.

Grimsby’s coastal proximity and flat landscape modify pollen dispersal; sea breezes can clear, yet urban corridors and sheltered areas accumulate. Late autumn brings heightened mould spore counts, September-November, due to damp leaf decomposition in Grimsby’s parklands and shaded urban areas.

The pollen count in Grimsby today is low, driven mainly by Mugwort.

LOW

14 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 LOW

Evening

Grass LOW

Tree LOW

Weed LOW

Species	Level	Count
🌿 Mugwort	LOW	4 grains/m³
🌿 Western Ragweed	LOW	3 grains/m³
🌿 Sagebrush	LOW	3 grains/m³
🌾 Cock's-foot	LOW	3 grains/m³
🌾 Perennial Ryegrass	LOW	3 grains/m³
+35 more tracked Timothy Grass Grass (mixed) Giant Ragweed Pigweed Fat Hen Ribwort Plantain Common Sorrel Russian Thistle Stinging Nettle 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
🌿 Mugwort	MED	5 grains/m³
🌿 Western Ragweed	LOW	3 grains/m³
🌿 Sagebrush	LOW	3 grains/m³
🌾 Cock's-foot	LOW	3 grains/m³
🌾 Perennial Ryegrass	LOW	3 grains/m³
+35 more tracked Timothy Grass Grass (mixed) Giant Ragweed Fat Hen Russian Thistle Stinging Nettle Pigweed Ribwort Plantain 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
🌿 Mugwort	MED	10 grains/m³
🌿 Western Ragweed	MED	7 grains/m³
🌿 Sagebrush	MED	7 grains/m³
🌾 Perennial Ryegrass	MED	5 grains/m³
🌾 Grass (mixed)	MED	5 grains/m³
+35 more tracked Giant Ragweed Cock's-foot Timothy Grass 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
🌿 Mugwort	MED	6 grains/m³
🌿 Western Ragweed	LOW	4 grains/m³
🌿 Sagebrush	LOW	4 grains/m³
🌾 Grass (mixed)	LOW	4 grains/m³
🌿 Giant Ragweed	LOW	3 grains/m³
+35 more tracked Cock's-foot Perennial Ryegrass Timothy Grass Pigweed 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

Last updated: 14:18 UTC

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

Map of Grimsby (53.561068°, -0.095959°)

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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