Ragweed Pollen Count in McHenry, ND
Last updated Friday, November 6, 2026
This page shows the most recent reading available for McHenry — from Friday, November 6, 2026 (1 day ago) — not today's reading.
Pollen by type in McHenry
What is the ragweed pollen count in McHenry today?
The McHenry ragweed pollen index today is 0.6 (Low) on Pollen Atlas’s modelled 0–100 scale. Low
Modelled pollen risk index — not a measured count.
McHenry’s overall pollen count today is 5 (Low) across all types. See the full McHenry pollen count for the overall index and every type together.
McHenry Ragweed Pollen Count: 5-Day Forecast
| Day | Overall index | Category |
|---|---|---|
| Friday, November 6 | 5 | Low |
| Saturday, November 7 | 5 | Low |
| Sunday, November 8 | 5 | Low |
| Monday, November 9 | 5 | Low |
| Tuesday, November 10 | 5 | 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 McHenry’s overall trend across the week. Today’s ragweed pollen reading is the headline above.
Species driving McHenry’s ragweed 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: ragweed pollen reads 0.6 (Low) today. The plant-by-plant detail that is available, from the Google Pollen API, is in the next section.
How to read this: the “ragweed” figure on this site is the modelled weed pollen index — the weed group (ragweed + mugwort) — printed under the ragweed name the rankings use.
Plants affecting McHenry now — ragweed pollen
Detailed plant-by-plant readings for the ragweed pollen category were not returned in today’s source data for McHenry. The type summary stands: ragweed pollen reads 0.6 (Low) today.
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’s readings.
Plant detail returns here automatically on any day the feed includes it.
What this ragweed pollen level means
Low risk. Keep windows open; consider allergy meds only if sensitive.
Enjoy outdoor activities.
Ragweed in the east and sagebrush in the west run from August until the first hard frost. This month sits outside the usual ragweed pollen window for the Northern Plains pattern, so today’s ragweed pollen reading is the modelled value outranking the calendar — this page reports the modelled reading first. The North Dakota allergy season guide singles out ragweed, heaviest in the Red River Valley, over river cottonwood and town elm in late spring.
McHenry allergies today
McHenry allergies today are set by the same reading as the McHenry pollen count today: the Total Pollen Index is 5 (Low), and the ragweed pollen index on this page is 0.6 (Low) of it. When people ask about McHenry allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for McHenry.
Allergies in McHenry follow the North Dakota calendar set out on the full McHenry 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 McHenry before heading outdoors, the ragweed 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 McHenry allergy forecast for the ragweed pollen season: it shows whether McHenry 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 McHenry pollen count — all types, the overall index and today’s ranking context
See how McHenry ranks in today's pollen count rankings — the worst cities for allergies today
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).