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

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About Pollen in Cambridge

Cambridge’s spring allergy season (March-May) is dominated by Birch pollen from ubiquitous street trees and College Gardens; Oak pollen follows, originating from established urban parks like Parker’s Piece and Jesus Green. Summer (June-August) peaks with pervasive Grass pollen from the River Cam’s meadows, Stourbridge Common, and surrounding Fenland fringes.

The city’s flat topography and dense green spaces can trap airborne pollen, locally intensifying concentrations; late autumn/winter (September-February) introduces Mould spores, exacerbated by damp conditions along the Cam’s banks and decomposing leaf litter within areas such as Cambridge University Botanic Garden.

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

MED

13 active species

Refreshing live forecast…

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4-Day Forecast:

Morning

Grass MED

Tree LOW

Weed LOW

Afternoon

Grass MED

Tree LOW

Weed MED

Evening

Grass LOW

Tree LOW

Weed MED

Species	Level	Count
🌿 Mugwort	MED	6 grains/m³
🌿 Western Ragweed	MED	5 grains/m³
🌿 Sagebrush	MED	5 grains/m³
🌾 Cock's-foot	MED	5 grains/m³
🌾 Perennial Ryegrass	MED	5 grains/m³
+35 more tracked Timothy Grass Grass (mixed) Pigweed Fat Hen Ribwort Plantain Russian Thistle Stinging Nettle 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
🌾 Perennial Ryegrass	MED	7 grains/m³
🌾 Grass (mixed)	MED	7 grains/m³
🌿 Mugwort	MED	6 grains/m³
🌾 Cock's-foot	MED	6 grains/m³
🌾 Timothy Grass	MED	6 grains/m³
+35 more tracked Western Ragweed Sagebrush Pigweed Fat Hen Russian Thistle Stinging Nettle 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	MED	11 grains/m³
🌿 Western Ragweed	MED	9 grains/m³
🌿 Sagebrush	MED	9 grains/m³
🌾 Cock's-foot	MED	7 grains/m³
🌾 Perennial Ryegrass	MED	7 grains/m³
+35 more tracked Timothy Grass Grass (mixed) Stinging Nettle Pigweed Fat Hen Russian Thistle 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	MED	8 grains/m³
🌿 Western Ragweed	MED	7 grains/m³
🌾 Perennial Ryegrass	MED	7 grains/m³
🌾 Grass (mixed)	MED	7 grains/m³
🌿 Sagebrush	MED	6 grains/m³
+35 more tracked Cock's-foot Timothy Grass Russian Thistle Stinging Nettle Pigweed 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

Last updated: 14:18 UTC

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

Map of Cambridge (52.202554°, 0.135228°)

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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