Portage, UT Pollen Count

Portage, UT · Last updated Friday, November 6, 2026

This page shows the most recent reading available for Portage — from Friday, November 6, 2026 (1 day ago) — not today's reading.

Pollen Overview

Today's overall pollen level and the dominant type (trees, weeds, grass, or mold).

LowDominant Allergen: Weeds
Portage, UT · Sat, Nov 7

Total Pollen Index

The combined pollen level across all types (0–100).

Portage, UT

21index / 100
Low
0–40 Low41–60 Moderate61–100 High

Weeds Index

How active weeds pollen is today (0–100).

Portage, UT

27index / 100
Low
0–40 Low41–60 Moderate61–100 High

Pollen Types

Pick a pollen subtype to update the species forecast

Top Allergens for Portage:

5-Day Portage Overall Pollen Forecast

Bars are colored by severity (Low/Moderate/High).

Pollen count Portage residents check each morning

The Portage pollen count today is 21 (Low). The main driver is Ragweed, with weed pollen at 27 today. Weed pollen leads the split at 27 (Low on its own scale), followed by tree pollen at 0.6 and grass pollen at 0.6. Below, the plant detail and the multi-day outlook show whether today is the pattern or the exception. Pollen Atlas updated this count on Friday, November 6, 2026.

A Low band on the Pollen Atlas index means the Total Pollen Index has stayed in the lower part of the 0–100 scale. Readings in this band are built from low individual category values rather than from one large spike, and the category split above matters more than the headline number: a low total can still contain one category, such as weed pollen or mold, reading noticeably higher than the rest, which is why the split is printed on every Portage page.

Higher-elevation Mountain West cities generally run a shorter outdoor pollen season than the coasts or the South, with the main tree and grass activity compressed into the warmer months. Autumn and winter pages in this region are therefore commonly quiet, with low totals built from small weed and mold values. A low reading in this region and season is the expected pattern, and any future rise will show first in the category split and the forecast, not in the headline alone.

To see whether today’s pollen level holds, check the 5-day Portage pollen forecast below — it is currently mixed, with Sunday the highest day in the window.

This is the pollen count Portage residents check each morning, built from the day’s tree, grass, weed and mold readings.

What is the Portage pollen count today?

The Portage pollen count today is 21 out of 100 (Low) on the Pollen Atlas Total Pollen Index, driven mainly by Ragweed.

Short answer for anyone searching pollen count today Portage: this page is updated every morning with the day’s modelled reading.

Portage allergies today

Portage allergies today are set by the same reading as the pollen count above: the Total Pollen Index is 21 (Low), driven mainly by Ragweed. When people ask about Portage allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for Portage.

Allergies in Portage follow the Utah calendar set out below — the chapters, the plants behind them, and the 5-day forecast on this page show whether today is typical for the season or an exception to it. If you are checking allergies today in Portage before heading outdoors, the split at the top of this page is the part to read: it shows which pollen is doing the work today, not just how high the total sits.

Read the five-day table on this page as the Portage allergy forecast: today reads 21 (Low), and the day-by-day outlook shows whether Portage allergies are set to ease or build across the week — the days to plan outdoor time around are the ones where the index steps down, not just today.

In practice, the allergy count Portage today records is this same combined reading — tree, grass, weed and mold in one index.

The Portage allergy count today is 21 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.

Pollen count today Portage: the 5-day forecast

DayTotal Pollen IndexBand
Friday, November 621Low
Saturday, November 721Low
Sunday, November 823Low
Monday, November 921Low
Tuesday, November 1021Low

Pollen Atlas forecasts Portage’s pollen count to peak on Sunday at 23 (Low) over the next 5 days.

Pollen by type in Portage

What is driving Portage’s pollen today

The shape of today’s 21 (Low) is set by weed pollen at 27 (Low on its own scale) — about 96% of the four category readings added together, 26.4 points clear of the next category, tree pollen at 0.6. A weed-led total is the classic late-year shape: tree and grass pollen have usually receded, leaving weed pollen — and on damp days mold — to make up most of what the index records. Weed pollen leading in November runs against the usual calendar — the Utah weed chapter runs August to October — so today’s lead is the model outranking the pattern, and this page reports the modelled reading first.

Plant-level detail is not in today’s feed for Portage, so the drivers have to be read from the category split above. The Utah guide’s account of Utah names planted elm, maple, ash and poplars in spring, and chenopod and sagebrush-country weeds at the close — the pollens behind readings of this shape in this state — and the split shows how much of today’s total each category is actually carrying.

Across the five-day window the Total Pollen Index runs from 21 to 23, never changing band. Today’s 21 sits 0 points below the window’s average of 21.4 — a steady window, in which one day reads much like the next.

Plants affecting Portage now

Detailed plant-by-plant readings for Portage were not returned in today\u2019s source data, so this section summarises the pollen types the index above is built from instead of listing individual plants.

Tree pollen is one of the categories with a non-zero reading today, at 0.6 (Low).

Grass pollen is one of the categories with a non-zero reading today, at 0.6 (Low).

Weed pollen is one of the categories with a non-zero reading today, at 27 (Low).

In the Mountain West pattern, the plants that typically shape this city’s year are spring trees and late-spring grasses in a compressed warm-season window — named here as regional context only, not as today\u2019s measurements.

Plant detail returns here automatically on any day the source data includes it.

Every pollen type, with photos and seasons: the pollen directory.

Portage pollen through the year

Three chapters make the Utah pollen year, and Portage follows them in the Mountain West order. The tree chapter: juniper can arrive in late winter, and the main tree wave builds in spring — as late as April at Denver’s altitude. The grass chapter: grasses follow in a compressed early-summer run. The weed chapter: ragweed and sagebrush-family weeds close the year from late summer.

Most Utahns live along the Wasatch Front, in high-desert bowls where winter inversions pool cold air — and the same held-air geography shapes how local pollen lingers. The benches — old lake terraces climbing the foothills — can stand above an inversion pool in cleaner air while the valley floor sits in the murk, so a street’s elevation can matter as much as its trees. The Utah guide singles out planted elm, maple, ash and poplars in spring, and chenopod and sagebrush-country weeds at the close.

November falls between the main chapters of the Utah pollen year — the tail of one and the approach of the next — so the calendar alone explains little today, and the modelled split above carries the story. Between them, the three chapters cover 9 months of the Utah year, February to October — leaving a quiet gap of roughly 3 months in the depth of the off-season. The full calendar is set out in the Utah allergy season guide.

How to read this index

Pollen Atlas reports the Portage pollen count on a Total Pollen Index from 0 to 100, built from separate tree, grass and weed readings. The total is a summary, not an average of the three: a single strong category can lift it, and three quiet categories can hold it down whatever the month. Index values are a modelled pollen risk index computed by Pollen Atlas from open weather, vegetation and phenology data, calibrated against CDC/NAB season data, with plant detail by the Google Pollen API. The index is a modelled 0–100 scale, not a measured count, and figures update through the day, so a morning and an evening visit to this page can legitimately show different numbers.

Portage in today’s national picture

At 21 (Low), Portage ranks joint 47143rd of the 90896 cities Pollen Atlas tracks today — in the middle of the national table. The highest reading in the country today is Serpa, Portugal at 53, and the lowest is Galiakberovo, Russia at 5. The whole table spans 48 points today — a wide-open day, when the top and bottom of the table are effectively in different seasons.

Around Portage: Plymouth, UT (9 miles away) reads 14 (Low); Clarkston, UT (10 miles away) reads 14 (Low); Riverside, UT (13 miles away) reads 25 (Low). Portage reads 7 points higher than its nearest tracked neighbour today. Across Utah’s 333 tracked cities, today runs from 5 in Summit Park to 27 in Hyrum.

Pollen totals are population numbers; symptoms are personal. The same reading can leave one Portage resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every season, allergists in Portage, UT can test whether tree, grass, weed or mold is the category that matters for you — the four readings at the top of this page are the starting point for that conversation.

Portage in its local area

Across Utah’s 333 tracked cities, Portage ranks joint 79th today.

Like every Pollen Atlas city page, the Portage, UT pollen count is refreshed each morning.

Nearby cities

From Pollen Atlas News

See how Portage ranks in today's pollen count rankings — the worst cities for allergies today

See Portage on the US pollen map

Search the full allergist directory

Pollen indexes: a modelled pollen risk index computed by Pollen Atlas from open weather, vegetation and phenology data, calibrated against CDC/NAB season data. Plant detail: Google Pollen API. Index values are modelled, not measured counts. Sources: CDC/NAB; USA-NPN; GBIF (CC BY); ESA WorldCover (CC BY 4.0).