V.HI

15 active species

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4-Day Forecast:

Morning

Grass LOW

Tree HIGH

Weed LOW

Afternoon

Grass LOW

Tree V.HI

Weed LOW

Evening

Grass LOW

Tree HIGH

Weed LOW

Species	Level	Count
🌳 Silver Birch	V.HI	169 grains/m³
🌳 Downy Birch	V.HI	152 grains/m³
🌳 Paper Birch	V.HI	122 grains/m³
🌳 English Oak	HIGH	96 grains/m³
🌳 White Oak	HIGH	66 grains/m³
+35 more tracked White Mulberry Box Elder Japanese Cypress Black Poplar Ash Field Elm Mediterranean Cypress Holm Oak Pellitory-of-the-wall Upright Pellitory Alder Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Australian Pine Fat Hen Hazel Japanese Cedar Bermuda Grass Cock's-foot Mountain Cedar Perennial Ryegrass Olive Parthenium Weed Timothy Grass Ribwort Plantain London Plane Grass (mixed) Mesquite Common Sorrel Russian Thistle Stinging Nettle All species in the app: Android iOS
🌳 Silver Birch	V.HI	125 grains/m³
🌳 Downy Birch	V.HI	112 grains/m³
🌳 Paper Birch	HIGH	90 grains/m³
🌳 English Oak	HIGH	70 grains/m³
🌳 White Oak	MED	49 grains/m³
+35 more tracked White Mulberry Box Elder Japanese Cypress Black Poplar Ash Mediterranean Cypress Field Elm Holm Oak Alder Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Australian Pine Fat Hen Hazel Japanese Cedar Bermuda Grass Cock's-foot Mountain Cedar Perennial Ryegrass Olive Pellitory-of-the-wall Upright Pellitory Parthenium Weed Timothy Grass Ribwort Plantain London Plane Grass (mixed) Mesquite Common Sorrel Russian Thistle Stinging Nettle All species in the app: Android iOS
🌳 Silver Birch	X.HI	421 grains/m³
🌳 Downy Birch	X.HI	379 grains/m³
🌳 Paper Birch	X.HI	304 grains/m³
🌳 English Oak	X.HI	238 grains/m³
🌳 White Oak	V.HI	165 grains/m³
+35 more tracked White Mulberry Box Elder Japanese Cypress Black Poplar Ash Mediterranean Cypress Field Elm Holm Oak Pellitory-of-the-wall Upright Pellitory London Plane Alder Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Australian Pine Fat Hen Hazel Japanese Cedar Bermuda Grass Cock's-foot Mountain Cedar Perennial Ryegrass Olive Parthenium Weed Timothy Grass Ribwort Plantain Grass (mixed) Mesquite Common Sorrel Russian Thistle Stinging Nettle All species in the app: Android iOS
🌳 Silver Birch	X.HI	500 grains/m³
🌳 Downy Birch	X.HI	449 grains/m³
🌳 Paper Birch	X.HI	360 grains/m³
🌳 English Oak	X.HI	282 grains/m³
🌳 White Oak	V.HI	196 grains/m³
+35 more tracked White Mulberry Box Elder Japanese Cypress Black Poplar Ash Field Elm Mediterranean Cypress Holm Oak Pellitory-of-the-wall Upright Pellitory London Plane Alder Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Australian Pine Fat Hen Hazel Japanese Cedar Bermuda Grass Cock's-foot Mountain Cedar Perennial Ryegrass Olive Parthenium Weed Timothy Grass Ribwort Plantain Grass (mixed) Mesquite Common Sorrel Russian Thistle Stinging Nettle All species in the app: Android iOS

Last updated: 14:03 UTC

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

Map of Montreal (45.5017°, -73.5673°)

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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