Name: Pollen forecast for Stevenage (2026-09-01)
Creator: Pollen Count
Published: 2026-09-01T15:30:43Z
License: https://pollencount.org/terms/

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About Pollen in Stevenage

Stevenage experiences peak spring allergen load (March-May) from Birch and Oak pollen, originating from extensive urban parkland (e.g., Fairlands Valley Park) and tree-lined residential avenues; summer (May-July) is dominated by Grass pollen, prevalent across local meadows, playing fields, and riverbank areas.

The town’s green belt proximity and sheltered urban design can concentrate airborne pollen levels; late-season (September-November) sees elevated Mould spore counts, primarily from decaying autumn foliage in damp, shaded environments.

The pollen count in Stevenage today is V.HI, driven mainly by Mugwort.

V.HI

15 active species

Refreshing live forecast…

.forecast-refresh-status{display:none!important}.date-tab{cursor:default;opacity:.55}Showing today's cached forecast. Enable JavaScript to switch days and load live data.

4-Day Forecast:

Morning

Grass MED

Tree LOW

Weed HIGH

Afternoon

Grass MED

Tree LOW

Weed V.HI

Evening

Grass MED

Tree LOW

Weed V.HI

Species	Level	Count
🌿 Mugwort	V.HI	32 grains/m³
🌿 Giant Ragweed	HIGH	22 grains/m³
🌿 Sagebrush	HIGH	21 grains/m³
🌿 Common Ragweed	HIGH	19 grains/m³
🌾 Grass (mixed)	MED	12 grains/m³
+35 more tracked Cock's-foot Perennial Ryegrass Timothy Grass Russian Thistle Stinging Nettle Pigweed Fat Hen Western Ragweed Ribwort Plantain 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
🌿 Mugwort	V.HI	36 grains/m³
🌿 Giant Ragweed	HIGH	25 grains/m³
🌿 Sagebrush	HIGH	24 grains/m³
🌿 Common Ragweed	HIGH	21 grains/m³
🌾 Grass (mixed)	MED	17 grains/m³
+35 more tracked Perennial Ryegrass Timothy Grass Cock's-foot Russian Thistle Stinging Nettle Fat Hen Pigweed Western Ragweed Ribwort Plantain 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
🌿 Mugwort	V.HI	35 grains/m³
🌿 Giant Ragweed	HIGH	24 grains/m³
🌿 Sagebrush	HIGH	23 grains/m³
🌿 Common Ragweed	HIGH	21 grains/m³
🌾 Grass (mixed)	MED	10 grains/m³
+35 more tracked Russian Thistle Perennial Ryegrass Timothy Grass Stinging Nettle Fat Hen Cock's-foot Pigweed Ribwort Plantain Western Ragweed 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
🌿 Mugwort	HIGH	28 grains/m³
🌿 Giant Ragweed	HIGH	20 grains/m³
🌿 Sagebrush	HIGH	18 grains/m³
🌿 Common Ragweed	HIGH	17 grains/m³
🌾 Grass (mixed)	MED	9 grains/m³
+35 more tracked Perennial Ryegrass Cock's-foot Timothy Grass Russian Thistle Fat Hen Stinging Nettle Pigweed Ribwort Plantain Western Ragweed 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	V.HI
Wed 2 Sep	LOW	MED	V.HI
Thu 3 Sep	LOW	MED	V.HI
Fri 4 Sep	LOW	MED	HIGH

Map of Stevenage (51.900196°, -0.155543°)

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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