Las Vegas pollen forecast - today, tomorrow and the week ahead

On 16 July 2026, overall pollen levels in Las Vegas are moderate. Cypress is the main contributor to airborne pollen, while ambrosia and grass remain at lower levels

On 17 July 2026, pollen conditions in Las Vegas will be different from today, with cypress continuing to decline

According to the five-day outlook, ambrosia, cypress, and grass pollen levels will increase later in the week.

On 16 July 2026, Cypress is the dominant pollen source in Las Vegas. ambrosia and grass are also present but at lower levels. oak, willow, alder, artemisia, and birch are not currently active.

Las Vegas' pollen season is dominated by introduced species, with olive and mulberry producing intense tree pollen from February through April. The dry desert climate suppresses mid-season pollen, though introduced grasses contribute through spring. The long, hot summer largely eliminates late season exposure. The flat desert basin concentrates pollen under calm conditions during spring, while the minimal natural vegetation means local sources are almost entirely from irrigated urban plantings.

The Las Vegas pollen forecast is updated four times daily. See the timestamp below for the most recent update.

Studies show that most pollen exposure (often 70–90%) comes from nearby sources, such as local trees and vegetation. A good pollen forecast therefore depends on accurately representing local vegetation. Pollen can travel long distances, but this usually matters only early in the season or during specific wind events.

Pollen data is often misunderstood. Most "pollen levels" are not real-time measurements, but forecasts.

Direct pollen measurements are typically delayed by 1-2 days because they require manual analysis. To show current conditions in Las Vegas, modern forecasts combine recent measurements, weather data, and information about local vegetation.

This allows us to estimate pollen levels for today and the coming days, not just report the past.

Airmine’s atmospheric monitoring platform was developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team, using satellite and Earth observation technologies to improve emissions monitoring.