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 Milwaukee 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 1:47 pm CT.
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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 Milwaukee 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 Milwaukee 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 12.6% of adults in the city of Milwaukee have current asthma, according to the CDC’s PLACES estimate for 2023 (95% confidence interval: 11.4% to 14.0%). It is a statistical estimate from national survey data, not a count.
24 allergists enrolled in Medicare practice in the Milwaukee area: 1.52 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 Milwaukee 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.
Lake Michigan can keep Milwaukee County cooler on summer days and warmer on winter nights.2 Across Wisconsin, the freeze-free season ranges from nearly 100 days a year in the northeast and north-central lowlands to slightly more than 180 days in the Milwaukee area.3 At the airport, a typical year has about 192 days between the last spring freeze and the first fall freeze.1
A USDA Forest Service inventory estimates that Milwaukee has 3.7 million live trees at least 1 inch in diameter.4 By number, the most common species are common buckthorn, boxelder and green ash.4 Among trees at least 5 inches in diameter, green ash, boxelder and Norway maple lead.4 Ash trees also make up the great majority of the city’s dead trees.4
Common ragweed blooms in August and September, according to a University of Wisconsin weed identification sheet.5 The sheet describes it as an annual that reproduces only by seed, with small green flowers in slender, spike-like clusters at the stem tips.5
Answered from the values on this page.
Very little. None of the plants Google models is above 0 in Milwaukee today.
No. It’s Google’s modeled pollen index, from 0 (none) to 5 (very high), calculated for the location of central Milwaukee. 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 Milwaukee, so each day starts with its own values, and again after Google’s daily model run, usually by about 9:30 am CT. Each section shows when its values were retrieved.
Source: Includes pollen data from GoogleIncludes data from Google Maps