Tree Pollen Count in Johnston, SC
Last updated Friday, November 6, 2026
This page shows the most recent reading available for Johnston — from Friday, November 6, 2026 (1 day ago) — not today's reading.
Pollen by type in Johnston
What is the tree pollen count in Johnston today?
The Johnston tree pollen index today is 11 (Low) on Pollen Atlas’s modelled 0–100 scale. Low
Modelled pollen risk index — not a measured count.
Johnston’s overall pollen count today is 12 (Low) across all types. See the full Johnston pollen count for the overall index and every type together.
Johnston Tree Pollen Count: 5-Day Forecast
| Day | Overall index | Category |
|---|---|---|
| Friday, November 6 | 12 | Low |
| Saturday, November 7 | 18 | Low |
| Sunday, November 8 | 17 | Low |
| Monday, November 9 | 17 | Low |
| Tuesday, November 10 | 17 | Low |
Pollen Atlas models the daily detail as an overall index: day-by-day splits by individual pollen type are not part of the modelled data, so this table shows Johnston’s overall trend across the week. Today’s tree pollen reading is the headline above.
Species driving Johnston’s tree pollen
Species-level counts are not part of the modelled data Pollen Atlas publishes — the modelled index is reported per pollen type, not per species — so this section gives the type summary: tree pollen reads 11 (Low) today. The plant-by-plant detail that is available, from the Google Pollen API, is in the next section.
Plants affecting Johnston now — tree pollen
Detailed plant-by-plant readings for the tree pollen category were not returned in today’s source data for Johnston. The type summary stands: tree pollen reads 11 (Low) today.
In the Southeast pattern, the plants that typically shape this city’s year are spring trees, warm-season grasses and late-summer ragweed — named here as regional context only, not as today’s readings.
Plant detail returns here automatically on any day the feed includes it.
What this tree pollen level means
Low risk. Keep windows open; consider allergy meds only if sensitive.
Enjoy outdoor activities.
Trees can start as early as February and peak in April. This month sits outside the usual tree pollen window for the Southeast pattern, so today’s tree pollen reading is the modelled value outranking the calendar — this page reports the modelled reading first. The South Carolina allergy season guide singles out oak — the pine dust filming cars in the same weeks is a comparatively weak allergen.
Johnston allergies today
Johnston allergies today are set by the same reading as the Johnston pollen count today: the Total Pollen Index is 12 (Low), and the tree pollen index on this page is 11 (Low) of it. When people ask about Johnston allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Johnston.
Allergies in Johnston follow the South Carolina calendar set out on the full Johnston page — the chapters, the plants behind them, and the 5-day forecast show whether today is typical for the season or an exception to it. If you are checking allergies today in Johnston before heading outdoors, the tree pollen split on this page is the part to read: it shows whether this pollen type is doing the work today, not just how high the total sits.
Read the five-day overall trend above as the Johnston allergy forecast for the tree pollen season: it shows whether Johnston allergies are set to ease or build across the week, day by day — the days to plan outdoor time around are the ones where the overall index steps down, not just today.
See the full Johnston pollen count — all types, the overall index and today’s ranking context
See how Johnston ranks in today's pollen count rankings — the worst cities for allergies today
See Johnston on the pollen map
Every pollen type, with photos and seasons: the pollen 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).