Las Vegas, NV Grass Pollen
Grass pollen in Las Vegas usually peaks around April to June, reaching Moderate at its worst. Las Vegas planted so many olive and mulberry trees that their pollen became a public health problem, and Clark County banned new ones in 1991. Those trees still drive a heavy spring, with juniper in winter and grass into early summer.
Bermuda grass keeps counts up from spring into early summer across valley lawns and parks.
Grass in Las Vegas today
Tuesday, July 28, 2026
Grass pollen by month in Las Vegas
How grass usually runs across the year. The current month is outlined.
Managing grass season in Las Vegas
If grass is your trigger, start a daily antihistamine like cetirizine (Zyrtec) or loratadine (Claritin) a week or two before the April to June peak, rather than waiting for symptoms. Keep windows closed on high-count mornings, shower and change clothes after time outside, and run the AC on recirculate in the car.
When symptoms don't ease with over-the-counter medicine, an allergist in Nevada can test whether grass is really what you react to and talk through longer-term options like allergy shots.
Sources
More pollen in Las Vegas
- Las Vegas juniper pollen — peaks February to April.
- Las Vegas mulberry pollen — peaks March to April.
- Las Vegas olive pollen — peaks April to May.
- Las Vegas pollen calendar — every allergen, month by month.
- Las Vegas pollen count today — live tree, grass, and weed levels with a 5-day forecast.
- Nevada pollen season — the statewide calendar and other cities.
Get Las Vegas pollen alerts
We send a free email whenever pollen is High or Very High in Las Vegas. No spam, no daily emails when pollen is low. Just a heads-up on the days that matter.
Sign up for free alertsSeasonal pattern based on Nevada pollen data and local sources. Today's reading updated daily. MyPollenPal