
Littleleaf linden
Tilia cordata
High today, mostly weed pollen.
Last updated August 15, 2026
Weed pollen is the main concern in Amherst today, running high enough to cause noticeable symptoms for those who are sensitive to it. Tree pollen remains quiet at this point in the season, so any irritation you notice outdoors is most likely tied to weeds rather than trees. Looking ahead, weed pollen is expected to stay elevated through the next several days, easing slightly at times but generally holding in the high range. Tree pollen should continue to stay low, with only minor day-to-day shifts. This pattern fits the season well: mid-August is typically when ragweed and other weeds take over as the primary allergy trigger, while trees like maple, honeylocust, syringa, hibiscus, and laburnum have long finished their spring release and are largely dormant for allergy purposes until next year.
Every dot is a tree near Amherst, colored by how allergenic it is. Click one for its details, and zoom in for a closer look.
The local tree genera behind today's pollen near Amherst. Each bar is that genus's share of the tree pollen.
270 pollen-relevant trees nearby drive today's tree-pollen reading.
Get to know the tree types growing around Amherst: what each looks like, how allergenic it is, and when it blooms.

Littleleaf linden
Tilia cordata

Norway maple
Acer platanoides

London planetree
Platanus acerifolia

Silver maple
Acer saccharinum

Honeylocust
Gleditsia triacanthos

Christine buisman elm
Ulmus carpinifolia

Hedge maple
Acer campestre

Red maple
Acer rubrum

Common horsechestnut
Aesculus hippocastanum

Crimson king maple
Acer platanoides

Callery pear
Pyrus calleryana

Kentucky coffee tree
Gymnocladus dioicus

Austrian pine
Pinus nigra

Species elm
Ulmus

Swamp white oak
Quercus bicolor

Green ash
Fraxinus pennsylvanica