Name: Pollen forecast for Hereford (2026-09-01)
Creator: Pollen Count
Published: 2026-09-01T15:30:32Z
License: https://pollencount.org/terms/

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About Pollen in Hereford

Hereford’s spring allergen profile (March-May) features dominant Birch and Oak pollen from city parks like Castle Green and surrounding deciduous woodlands; Alder contributes earlier (February-March) along the River Wye banks; summer (May-July) sees high grass pollen levels, particularly from Bishops Meadow, King George V Playing Fields, and surrounding agricultural areas. The Wye Valley’s topographical bowl often traps pollen, increasing local atmospheric concentrations; late-season (August-November) mould spores, exacerbated by Herefordshire’s damp conditions, originate from decaying vegetation and leaf litter prevalent in floodplains and urban green spaces.

The pollen count in Hereford today is HIGH, driven mainly by Giant Ragweed.

HIGH

15 active species

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4-Day Forecast:

Morning

Grass MED

Tree LOW

Weed MED

Afternoon

Grass MED

Tree LOW

Weed HIGH

Evening

Grass LOW

Tree LOW

Weed HIGH

Species	Level	Count
🌿 Giant Ragweed	HIGH	22 grains/m³
🌿 Common Ragweed	HIGH	19 grains/m³
🌾 Grass (mixed)	MED	19 grains/m³
🌾 Timothy Grass	MED	17 grains/m³
🌿 Mugwort	HIGH	16 grains/m³
+35 more tracked Cock's-foot Perennial Ryegrass Russian Thistle Stinging Nettle Fat Hen Pigweed Ribwort Plantain Western Ragweed Sagebrush Common Sorrel Box Elder Alder 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
🌿 Giant Ragweed	HIGH	16 grains/m³
🌿 Common Ragweed	MED	13 grains/m³
🌿 Mugwort	MED	11 grains/m³
🌾 Grass (mixed)	MED	11 grains/m³
🌾 Timothy Grass	MED	10 grains/m³
+35 more tracked Russian Thistle Cock's-foot Perennial Ryegrass Stinging Nettle Fat Hen Pigweed Ribwort Plantain Western Ragweed Sagebrush Common Sorrel Box Elder Alder 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
🌿 Giant Ragweed	HIGH	28 grains/m³
🌿 Common Ragweed	HIGH	24 grains/m³
🌾 Grass (mixed)	HIGH	22 grains/m³
🌿 Mugwort	HIGH	20 grains/m³
🌾 Timothy Grass	HIGH	20 grains/m³
+35 more tracked Cock's-foot Russian Thistle Perennial Ryegrass Stinging Nettle Fat Hen Pigweed Ribwort Plantain Western Ragweed Sagebrush Common Sorrel Box Elder Alder 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
🌿 Giant Ragweed	HIGH	19 grains/m³
🌾 Grass (mixed)	MED	18 grains/m³
🌿 Common Ragweed	HIGH	17 grains/m³
🌾 Timothy Grass	MED	16 grains/m³
🌿 Mugwort	MED	14 grains/m³
+35 more tracked Cock's-foot Perennial Ryegrass Russian Thistle Stinging Nettle Fat Hen Pigweed Ribwort Plantain Western Ragweed Sagebrush Common Sorrel Box Elder Alder 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: 15:30 UTC

4-Day Forecast	Tree	Grass	Weed
Tue 1 Sep	LOW	MED	HIGH
Wed 2 Sep	LOW	MED	HIGH
Thu 3 Sep	LOW	HIGH	HIGH
Fri 4 Sep	LOW	MED	HIGH

Map of Hereford (52.056463°, -2.693815°)

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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