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 Billings 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 11:37 am MT.
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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 Billings 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 Billings 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 10.8% of adults in the city of Billings have current asthma, according to the CDC’s PLACES estimate for 2023 (95% confidence interval: 9.7% to 12.1%). It is a statistical estimate from national survey data, not a count.
3 allergists enrolled in Medicare practice in the Billings area: 1.55 for every 100,000 people, more 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 Billings 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.
East of the Continental Divide, Montana is mostly open prairie, sagebrush, cropland or badlands, according to the state’s community forestry program.2 Eastern Montana communities have a more severe climate than western ones, with hotter summers, colder winters and more wind.2 At Billings Logan International Airport, a typical year brings about 14 inches of precipitation and a freeze-free season of about 156 days.1
A 2016 analysis of the 8,335 trees in Billings’ city parks found ash at 22.7% and blue spruce at 16.6%.3 Ash, Colorado blue spruce, Siberian elm and eastern cottonwood all rank among the ten most common trees in eastern Montana communities.2
Basin big sagebrush, whose range includes Montana, flowers from late August to October.4 Its flowers are self- or wind-pollinated.4 Another subspecies, Wyoming big sagebrush, also grows in Montana and usually flowers and is pollinated from midsummer to late fall.5
Answered from the values on this page.
Very little. None of the plants Google models is above 0 in Billings today.
No. It’s Google’s modeled pollen index, from 0 (none) to 5 (very high), calculated for the location of central Billings. 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 Billings, so each day starts with its own values, and again after Google’s daily model run, usually by about 8:30 am MT. Each section shows when its values were retrieved.
Source: Includes pollen data from GoogleIncludes data from Google Maps