Hermosa, SD Pollen Count

What is the Hermosa pollen count today?

The Hermosa pollen count today is 23 out of 100 (Low) on the Pollen Atlas Total Pollen Index, driven mainly by Ragweed.

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

Hermosa allergies today

Hermosa allergies today are set by the same reading as the pollen count above: the Total Pollen Index is 23 (Low), driven mainly by Ragweed. When people ask about Hermosa allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for Hermosa.

Allergies in Hermosa follow the South Dakota 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 Hermosa 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 Hermosa allergy forecast: today reads 23 (Low), and the day-by-day outlook shows whether Hermosa 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 Hermosa today records is this same combined reading — tree, grass, weed and mold in one index.

The Hermosa allergy count today is 23 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.

Pollen count today Hermosa: the 5-day forecast

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

Pollen by type in Hermosa

• Hermosa tree pollen count
• Hermosa grass pollen count
• Hermosa ragweed pollen count

What is driving Hermosa’s pollen today

The shape of today’s 23 (Low) is set by weed pollen at 30 (Low on its own scale) — about 96% of the four category readings added together, 29.4 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 South Dakota 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 Hermosa, so the drivers have to be read from the category split above. The South Dakota guide’s account of South Dakota names river-corridor cottonwood, elm and ash in spring, and a divided fall — ragweed in the east, sagebrush in the west — 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 23 sits 1 point above the window’s average of 22 — a steady window, in which one day reads much like the next.

Plants affecting Hermosa now

Detailed plant-by-plant readings for Hermosa 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 30 (Low).

In the Northern Plains pattern, the plants that typically shape this city’s year are river-corridor cottonwood, elm and ash in spring, summer grasses, and a divided fall — ragweed in the east, sagebrush in the west — 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.

Hermosa pollen through the year

The Hermosa pollen year runs in chapters, set by the Northern Plains pattern and the South Dakota calendar. Trees come first: river-corridor elm, cottonwood and ash open from March in South Dakota, while North Dakota’s trees flower in late spring, in May. Grasses take the middle of the year: grasses run from May into July, peaking in June and July. Weeds close it out: ragweed in the east and sagebrush in the west run from August until the first hard frost.

The South Dakota allergy season guide names river-corridor cottonwood, elm and ash in spring, and a divided fall — ragweed in the east, sagebrush in the west. The Missouri River splits the state into two regimes: a humid, farmed east where ragweed dominates the fall, and a dry, ranched west ruled by sagebrush, wormwood and Russian thistle. The Black Hills run their own cooler, higher calendar, while the southeastern corner around Sioux Falls starts earliest and finishes latest.

November falls between the main chapters of the South Dakota 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 8 months of the South Dakota year, March to October — a compressed season, which is why its chapters arrive in quick succession. The full calendar is set out in the South Dakota allergy season guide.

How to read this index

Pollen Atlas reports the Hermosa 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 even in a month when Hermosa, SD pollen is usually more active. 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.

Hermosa in today’s national picture

At 23 (Low), Hermosa ranks joint 41692nd 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 Hermosa: Fairburn, SD (11 miles away) reads 21 (Low); Keystone, SD (12 miles away) reads 5 (Low); Colonial Pine Hills, SD (13 miles away) reads 5 (Low). Hermosa reads 2 points higher than its nearest tracked neighbour today. Across South Dakota’s 484 tracked cities, today runs from 5 in Rapid City to 29 in Dell Rapids.

Pollen totals are population numbers; symptoms are personal. The same reading can leave one Hermosa resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every season, allergists in Hermosa, SD 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.

Hermosa in its local area

Across South Dakota’s 484 tracked cities, Hermosa ranks joint 356th today.

Like every Pollen Atlas city page, the Hermosa, SD pollen count is refreshed each morning.

Nearby cities

• Fairburn pollen count (11 miles away)
• Keystone pollen count (12 miles away)
• Colonial Pine Hills pollen count (13 miles away)
• Green Valley pollen count (14 miles away)
• Caputa pollen count (15 miles away)
• Rapid City pollen count (16 miles away)

From Pollen Atlas News

• South Dakota allergy season
• Ragweed season