Name: Pollen forecast for Peterborough (2026-05-20)
Creator: Pollen Count
Published: 2026-05-20T14:02:59Z
License: https://pollencount.org/terms/

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About Pollen in Peterborough

Spring allergy season, March to May, sees high Birch and Oak pollen counts; originating from extensive mature tree populations within Ferry Meadows Country Park, Nene Park, and city street trees. June through August, abundant Grass pollen dominates; derived from River Nene floodplains, Thorpe Meadows, and widespread suburban lawns.

Peterborough’s low-lying river valleys and urban heat island effect can trap and concentrate airborne allergens, intensifying local impact. Late autumn to winter brings elevated mould spore levels; fuelled by damp leaf decomposition in Central Park, other green spaces, and riverside vegetation.

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	76 grains/m³
🌳 Downy Birch	HIGH	53 grains/m³
🌳 Paper Birch	MED	41 grains/m³
🌳 Ash	MED	31 grains/m³
🌳 English Oak	MED	31 grains/m³
+35 more tracked Box Elder Black Poplar Field Elm Holm Oak London Plane White Oak 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	142 grains/m³
🌳 Downy Birch	HIGH	98 grains/m³
🌳 Paper Birch	HIGH	76 grains/m³
🌳 English Oak	HIGH	58 grains/m³
🌳 Ash	HIGH	57 grains/m³
+35 more tracked Black Poplar Box Elder Field Elm Holm Oak London Plane White Oak 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	112 grains/m³
🌳 Downy Birch	HIGH	78 grains/m³
🌳 Paper Birch	HIGH	60 grains/m³
🌳 English Oak	MED	46 grains/m³
🌳 Ash	MED	45 grains/m³
+35 more tracked Black Poplar Box Elder Field Elm Holm Oak London Plane White Oak 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	99 grains/m³
🌳 Downy Birch	HIGH	69 grains/m³
🌳 Paper Birch	HIGH	53 grains/m³
🌳 Ash	MED	40 grains/m³
🌳 English Oak	MED	40 grains/m³
+35 more tracked Box Elder Black Poplar Field Elm Holm Oak London Plane White Oak 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: 14:02 UTC

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

Map of Peterborough (52.549826°, -0.329495°)

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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