
Velvet ash
Fraxinus velutina
Low today, mostly grass pollen.
Last updated September 29, 2026
Grass and weed pollen are both running low around Las Vegas today, while tree pollen is absent entirely. Most people should get through the day without much irritation, though anyone with a strong sensitivity to grasses or weeds may notice mild symptoms, particularly outdoors during the warmer afternoon hours. Looking ahead, this pattern is expected to hold steady over the next several days, with grass and weed levels staying low and tree pollen remaining quiet. This lines up with the seasonal shift into fall, when local trees such as ash, pistacia, and the various palms typically go dormant, while lingering weed pollen tends to be the main source of any outdoor irritation this time of year.
Every dot is a tree near Las Vegas, 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 Las Vegas. Each bar is that genus's share of the tree pollen.
425 pollen-relevant trees nearby drive today's tree-pollen reading.
Get to know the tree types growing around Las Vegas: what each looks like, how allergenic it is, and when it blooms.

Velvet ash
Fraxinus velutina

Narrow leaf ash
Fraxinus angustifolia

Honey locust
Gleditsia triacanthos

White mulberry
Morus alba

Lace bark elm
Ulmus parvifolia

Fremont cottonwood
Populus fremontii

Afghan pine
Pinus brutia

Aleppo pine
Pinus halepensis

Siberian elm
Ulmus pumila

Italian cypress
Cupressus sempervirens

Glossy privet
Ligustrum lucidum

Southern live oak
Quercus virginiana

Japanese maple
Acer palmatum

Olive
Olea europaea

Purple leaf plum
Prunus cerasifera

Swan hill olive
Olea europaea