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 Missoula 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 1:01 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 Missoula 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 Missoula 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 10.9% of adults in the city of Missoula have current asthma, according to the CDC’s PLACES estimate for 2023 (95% confidence interval: 9.7% to 12.2%). It is a statistical estimate from national survey data, not a count.
2 allergists enrolled in Medicare practice in the Missoula 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 Missoula 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.
Norway maples make up 31% of Missoula’s street trees, well above the 10% that best forestry practice suggests for any single species.2 Green ash, Siberian elm, crabapples and honey locust complete the five most common species in the city’s 2016 analysis of 22,537 street trees.2
West of the Continental Divide, Montana’s mountainous region gets more precipitation, cooler summers and lighter winds than the eastern part of the state.3 A typical year at Missoula International Airport has a freeze-free season of about 130 days, and winters there average about 26 °F.1
Ponderosa pine ranks among the ten most common trees in western Montana communities.3 In western Montana, central Idaho and eastern Oregon, at elevations of 3,000 to 6,000 feet, the species generally begins flowering between May 1 and 10.4 It sheds pollen from May 25 to June 15.4
Answered from the values on this page.
Very little. None of the plants Google models is above 0 in Missoula today.
No. It’s Google’s modeled pollen index, from 0 (none) to 5 (very high), calculated for the location of central Missoula. 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 Missoula, 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