Pollen and Mold Center
Reports for week preceding Saturday, May 23, 2026
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This summary shows pollen reports for weekdays within the past 7 days.
Click on the name
of a pollen or mold to get general information about it.
Click on the History (Hx) link
to get the 60 days history prior to Monday, May 18, 2026.
Click on the Date
in the heading row to view the daily risk level report along with any additional observations.
Previous Week’s Report
Next Week’s Report
Tree pollens
Monday,
May 18
Tuesday,
May 19
Wednesday,
May 20
Thursday,
May 21
Friday,
May 22
Ash
Hx
4
0
0
4
2
Birch
Hx
0
0
0
4
0
Chestnut
Hx
9
9
2
4
4
Elm
Hx
0
0
0
0
0
Hickory
Hx
0
2
0
0
0
Juniper
Hx
0
0
0
0
0
Maple
Hx
0
0
0
0
0
Mulberry
Hx
4
4
2
14
14
Oak
Hx
0
0
0
0
0
Pine
Hx
0
0
0
0
2
Poplar
Hx
0
0
0
0
0
Sweetgum
Hx
0
0
0
0
0
Sycamore
Hx
2
0
0
0
7
Walnut
Hx
0
0
7
2
4
Willow
Hx
7
0
4
0
0
Weed pollens
Cattail
Hx
0
0
0
0
0
Dock
Hx
0
0
2
0
0
Goldenrod
Hx
0
0
0
0
0
Lambsquarter
Hx
0
0
0
0
0
Nettle
Hx
0
0
0
0
0
Plantain
Hx
0
0
0
0
0
Ragweed
Hx
0
0
0
0
0
Wormwood
Hx
0
0
0
0
0
Grass pollens
Grass
Hx
11
2
21
7
7
Mold
Mold
Hx
5,962
34,289
24,514
16,326
13,972
Air Quality
Forecast
Yellow
Yellow
Green
Green
Green
*Not Monitored
– Air Quality data is not recorded from Mid-September to Mid-May.
What do the colors mean?
Note:
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