LOW

5 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 LOW

Tree LOW

Weed LOW

Evening

Grass MED

Tree LOW

Weed LOW

Species	Level	Count
🌿 Pigweed	LOW	1 grains/m³
🌿 Fat Hen	LOW	1 grains/m³
🌿 Pellitory-of-the-wall	LOW	1 grains/m³
🌿 Parthenium Weed	LOW	1 grains/m³
🌿 Russian Thistle	LOW	1 grains/m³
+35 more tracked Box Elder Alder Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Cock's-foot Ash Mountain Cedar Perennial Ryegrass White Mulberry Olive Upright Pellitory Timothy Grass Ribwort Plantain London Plane Grass (mixed) Black Poplar Mesquite White Oak Holm Oak English Oak Common Sorrel Field Elm Stinging Nettle All species in the app: Android iOS
🌿 Russian Thistle	LOW	4 grains/m³
🌿 Pellitory-of-the-wall	LOW	3 grains/m³
🌿 Pigweed	LOW	2 grains/m³
🌿 Fat Hen	LOW	2 grains/m³
🌿 Parthenium Weed	LOW	2 grains/m³
+35 more tracked Grass (mixed) Bermuda Grass Upright Pellitory Ribwort Plantain Box Elder Alder Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Hazel Japanese Cedar Mediterranean Cypress Cock's-foot Ash Mountain Cedar Perennial Ryegrass White Mulberry Olive Timothy Grass London Plane Black Poplar Mesquite White Oak Holm Oak English Oak Common Sorrel Field Elm Stinging Nettle All species in the app: Android iOS
🌿 Russian Thistle	LOW	3 grains/m³
🌿 Pigweed	LOW	2 grains/m³
🌿 Fat Hen	LOW	2 grains/m³
🌿 Pellitory-of-the-wall	LOW	2 grains/m³
🌿 Parthenium Weed	LOW	2 grains/m³
+35 more tracked Grass (mixed) Bermuda Grass Upright Pellitory Ribwort Plantain Box Elder Alder Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Hazel Japanese Cedar Mediterranean Cypress Cock's-foot Ash Mountain Cedar Perennial Ryegrass White Mulberry Olive Timothy Grass London Plane Black Poplar Mesquite White Oak Holm Oak English Oak Common Sorrel Field Elm Stinging Nettle All species in the app: Android iOS
🌿 Russian Thistle	LOW	3 grains/m³
🌿 Pigweed	LOW	2 grains/m³
🌿 Fat Hen	LOW	2 grains/m³
🌿 Pellitory-of-the-wall	LOW	2 grains/m³
🌿 Parthenium Weed	LOW	2 grains/m³
+35 more tracked Ribwort Plantain Grass (mixed) Box Elder Alder Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Hazel Japanese Cedar Mediterranean Cypress Bermuda Grass Cock's-foot Ash Mountain Cedar Perennial Ryegrass White Mulberry Olive Upright Pellitory Timothy Grass London Plane Black Poplar Mesquite White Oak Holm Oak English Oak Common Sorrel 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	LOW
Thu 21 May	LOW	LOW	LOW
Fri 22 May	LOW	LOW	LOW
Sat 23 May	LOW	LOW	LOW

Map of Shanghai (31.2304°, 121.4737°)

More in China

Beijing Chengdu Chongqing Dalian Guangzhou Hangzhou

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