Long Hollow, SD Pollen Count Today

What is the Long Hollow pollen count today?

The Long Hollow pollen count today is 17 out of 100 (Low) on the Pollen Atlas Total Pollen Index, driven mainly by Ragweed.

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

Long Hollow allergies today

Long Hollow allergies today are set by the same reading as the pollen count above: the Total Pollen Index is 17 (Low), driven mainly by Ragweed. When people ask about Long Hollow allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for Long Hollow.

Allergies in Long Hollow 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 Long Hollow 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 Long Hollow allergy forecast: today reads 17 (Low), and the day-by-day outlook shows whether Long Hollow 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 Long Hollow today records is this same combined reading — tree, grass, weed and mold in one index.

The Long Hollow allergy count today is 17 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.

Pollen count today Long Hollow: the 5-day forecast

Pollen Atlas forecasts Long Hollow’s pollen count to peak on Saturday at 17 (Low) over the next 5 days.

Pollen by type in Long Hollow

• Long Hollow tree pollen count
• Long Hollow grass pollen count
• Long Hollow ragweed pollen count

What is driving Long Hollow’s pollen today

The shape of today’s 17 (Low) is set by weed pollen at 22 (Low on its own scale) — about 95% of the four category readings added together, 21.4 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 Long Hollow, 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 5 to 17, never changing band. Today’s 17 sits 8 points above the window’s average of 9.4 — a moving window, worth reading day by day rather than from the average.

Plants affecting Long Hollow now

Detailed plant-by-plant readings for Long Hollow 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 22 (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.

Long Hollow pollen through the year

Three chapters make the South Dakota pollen year, and Long Hollow follows them in the Northern Plains order. The tree chapter: river-corridor elm, cottonwood and ash open from March in South Dakota, while North Dakota’s trees flower in late spring, in May. The grass chapter: grasses run from May into July, peaking in June and July. The weed chapter: ragweed in the east and sagebrush in the west run from August until the first hard frost.

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. The South Dakota guide singles out river-corridor cottonwood, elm and ash in spring, and a divided fall — ragweed in the east, sagebrush in the west.

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 Long Hollow 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 Long Hollow, 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.

Long Hollow in today’s national picture

At 17 (Low), Long Hollow ranks joint 61701st of the 90896 cities Pollen Atlas tracks today — in the middle of the national table. The highest reading in the country today is Beja, Portugal at 52, and the lowest is Los Ángeles de San Rafael, Spain at 5. The whole table spans 47 points today — a wide-open day, when the top and bottom of the table are effectively in different seasons.

Around Long Hollow: Sisseton, SD (6 miles away) reads 23 (Low); Agency Village, SD (8 miles away) reads 21 (Low); Claire City, SD (12 miles away) reads 23 (Low). Long Hollow reads 6 points lower than its nearest tracked neighbour today. Across South Dakota’s 484 tracked cities, today runs from 5 in Rapid City to 28 in Gregory.

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

Long Hollow in its local area

Across South Dakota’s 484 tracked cities, Long Hollow ranks joint 424th today.

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

Nearby cities

• Sisseton pollen count (6 miles away)
• Agency Village pollen count (8 miles away)
• Claire City pollen count (12 miles away)
• Lake City pollen count (13 miles away)
• Eden pollen count (13 miles away)
• Veblen pollen count (14 miles away)

From Pollen Atlas News

• South Dakota allergy season
• Ragweed season