HIGH

3 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 MED

Afternoon

Grass LOW

Tree LOW

Weed HIGH

Evening

Grass MED

Tree LOW

Weed MED

Species	Level	Count
🌿 Parthenium Weed	HIGH	19 grains/m³
🌾 Grass (mixed)	LOW	3 grains/m³
🌾 Bermuda Grass	LOW	1 grains/m³
🌳 Box Elder	LOW	-
🌳 Alder	LOW	-
+35 more tracked Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Fat Hen Hazel Japanese Cedar Mediterranean Cypress Cock's-foot Ash Mountain Cedar Perennial Ryegrass White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Timothy Grass Ribwort Plantain London Plane Black Poplar Mesquite White Oak Holm Oak English Oak Common Sorrel Russian Thistle Field Elm Stinging Nettle All species in the app: Android iOS
🌿 Parthenium Weed	MED	10 grains/m³
🌾 Grass (mixed)	LOW	2 grains/m³
🌾 Bermuda Grass	LOW	1 grains/m³
🌳 Box Elder	LOW	-
🌳 Alder	LOW	-
+35 more tracked Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Fat Hen Hazel Japanese Cedar Mediterranean Cypress Cock's-foot Ash Mountain Cedar Perennial Ryegrass White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Timothy Grass Ribwort Plantain London Plane Black Poplar Mesquite White Oak Holm Oak English Oak Common Sorrel Russian Thistle Field Elm Stinging Nettle All species in the app: Android iOS
🌿 Parthenium Weed	MED	12 grains/m³
🌾 Grass (mixed)	LOW	2 grains/m³
🌾 Bermuda Grass	LOW	1 grains/m³
🌳 Box Elder	LOW	-
🌳 Alder	LOW	-
+35 more tracked Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Fat Hen Hazel Japanese Cedar Mediterranean Cypress Cock's-foot Ash Mountain Cedar Perennial Ryegrass White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Timothy Grass Ribwort Plantain London Plane Black Poplar Mesquite White Oak Holm Oak English Oak Common Sorrel Russian Thistle Field Elm Stinging Nettle All species in the app: Android iOS
🌿 Parthenium Weed	HIGH	21 grains/m³
🌾 Grass (mixed)	LOW	3 grains/m³
🌾 Bermuda Grass	LOW	1 grains/m³
🌳 Box Elder	LOW	-
🌳 Alder	LOW	-
+35 more tracked Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Fat Hen Hazel Japanese Cedar Mediterranean Cypress Cock's-foot Ash Mountain Cedar Perennial Ryegrass White Mulberry Olive Pellitory-of-the-wall Upright Pellitory Timothy Grass Ribwort Plantain London Plane Black Poplar Mesquite White Oak Holm Oak English Oak Common Sorrel Russian Thistle Field Elm Stinging Nettle All species in the app: Android iOS

Last updated: 14:03 UTC

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

Map of Riyadh (24.7136°, 46.6753°)

More in Saudi Arabia

Jeddah Mecca

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