Pollen today
Loading today’s values…
Pollen today
Loading today’s values…
Google gave no index for tree, grass or weed pollen here today.
Next four days, highest level each day:
Source: Includes pollen data from GoogleGoogle Maps
Source: Includes pollen data from GoogleIncludes data from Google Maps
Google’s index for each plant it models in Reno today. A plant out of season has no index.
Source: Includes pollen data from GoogleGoogle Maps
The forecast that moves pollen around, and the air beside it.
Forecast: National Weather Service, updated 10:30 am PT.
We’re getting pollen alert emails ready. Sign up now and we’ll email you when they start for Reno.
Each thread is one kind of pollen, and each square is one week, colored by that week’s highest level.
Google has given no index for Reno since records began on October 14, 2026.
Highest level each week, November 2025 to November 2026, from each day’s forecast.
Source: Includes pollen data from GoogleIncludes data from Google Maps
What this forecast doesn’t measure, and when to get help.
Google’s index covers tree, grass and weed pollen only, so there is no mold level for Reno on this page. The National Allergy Bureau publishes pollen and mold counts measured at its stations. Our guides cover common molds such as Alternaria, Cladosporium and Aspergillus.
The forecast doesn’t cover allergens indoors either: dust mites, cockroaches, mice, cats and dogs. Our guides explain each one, starting with dust mites and cats.
An estimated 10.6% of adults in the city of Reno have current asthma, according to the CDC’s PLACES estimate for 2023 (95% confidence interval: 9.4% to 11.9%). It is a statistical estimate from national survey data, not a count.
5 allergists enrolled in Medicare practice in the Reno area: 0.86 for every 100,000 people, fewer than the 1.22 across the US. The count doesn’t show how soon you can get an appointment. See the doctors listed in the Reno area, or how every state and metro compares.
AllergyNest count from CMS’s Doctors and Clinicians file (October 2026) and Census population estimates for 2025.
The geography, climate and plants behind each season here, with a source for every fact.
Sagebrush, Nevada’s state flower, is a common contributor to hay fever, according to the University of Nevada, Reno.2 Basin big sagebrush, which is widely distributed in the Great Basin, flowers from late August to October.3 Its flowers are pollinated by the wind or by their own pollen.3
The city lies in a high desert valley at the foot of the Sierra Nevada, its urban forestry plan notes.4 Only about 7 inches of rain and other precipitation falls at the airport in an average year.1 A typical year there has about 184 days between the last spring freeze and the first fall freeze.1
Among 17,960 public trees inventoried along Reno’s streets and in its parks in 2015, pine made up 11.8 percent and oak 11.1 percent, followed by Callery pear and maple.4 Along the Truckee River, Fremont cottonwood is the dominant native tree.4
Answered from the values on this page.
Very little. None of the plants Google models is above 0 in Reno today.
No. It’s Google’s modeled pollen index, from 0 (none) to 5 (very high), calculated for the location of central Reno. A pollen count is the number of pollen grains measured in a cubic meter of air at a counting station. How our pollen index works.
Twice a day. We fetch new values soon after midnight in Reno, so each day starts with its own values, and again after Google’s daily model run, usually by about 7:30 am PT. Each section shows when its values were retrieved.
Source: Includes pollen data from GoogleIncludes data from Google Maps