Pollen today
Loading today’s values…
Ragweed is very low in Greensboro today.
Ragweed should stay very low through Thursday.
Today in Greensboro, North CarolinaWednesday, November 4
Weed1Very lowRagweed
TreeNo index
GrassNo index
Next four days, highest level each day:
Thu1Very low
FriNo index
SatNo index
SunNo index
Source: Includes pollen data from GoogleGoogle Maps
Source: Includes pollen data from GoogleIncludes data from Google Maps
Plant by plant
Google’s index for each plant it models in Greensboro today. A plant out of season has no index.
Plants in GreensboroWednesday, November 4
Ragweed1Very low
AlderNo index
AshNo index
BirchNo index
CottonwoodNo index
ElmNo index
GrassesNo index
JuniperNo index
MapleNo index
OakNo index
PineNo index
Source: Includes pollen data from GoogleGoogle Maps
Weather and air in Greensboro
The forecast that moves pollen around, and the air beside it.
Weather forecast
- This Afternoon
- Mostly Cloudy. High 73 °F. Wind S 8 mph. 4% chance of precipitation.
- Tonight
- Rain Showers Likely. Low 63 °F. Wind S 8 mph. 73% chance of precipitation.
Forecast: National Weather Service, updated 2:48 pm ET.
Pollen alerts for Greensboro by email
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Greensboro’s year in pollen
Each thread is one kind of pollen, and each square is one week, colored by that week’s highest level.
Records for Greensboro began on October 14, 2026. Each week adds a square.
Highest level each week, November 2025 to November 2026, from each day’s forecast.
Tree
Grass
Weed
0 None1 Very low2 Low3 Moderate4 High5 Very highThis weekNot recorded
See it as a table
| Week | Tree | Grass | Weed |
|---|---|---|---|
| Oct 29 to Nov 4 | Not recorded | Not recorded | 2 Low |
| Oct 22 to Oct 28 | Not recorded | Not recorded | 3 Moderate |
| Oct 15 to Oct 21 | Not recorded | Not recorded | 3 Moderate |
| Oct 8 to Oct 14 | Not recorded | Not recorded | 3 Moderate |
Source: Includes pollen data from GoogleIncludes data from Google Maps
Beyond today’s pollen
What this forecast doesn’t measure, and when to get help.
No mold level
Google’s index covers tree, grass and weed pollen only, so there is no mold level for Greensboro on this page. The National Allergy Bureau publishes pollen and mold counts measured at its stations. Our guides cover common molds such as Alternaria, Cladosporium and Aspergillus.
No indoor allergens
The forecast doesn’t cover allergens indoors either: dust mites, cockroaches, mice, cats and dogs. Our guides explain each one, starting with dust mites and cats.
Asthma in Greensboro
An estimated 11.7% of adults in the city of Greensboro have current asthma, according to the CDC’s PLACES estimate for 2023 (95% confidence interval: 10.3% to 13.2%). It is a statistical estimate from national survey data, not a count.
Allergists in the Greensboro area
13 allergists enrolled in Medicare practice in the Greensboro area: 1.61 for every 100,000 people, more than the 1.22 across the US. The count doesn’t show how soon you can get an appointment. See the doctors listed in the Greensboro area, or how every state and metro compares.
AllergyNest count from CMS’s Doctors and Clinicians file (October 2026) and Census population estimates for 2025.
Greensboro’s pollen seasons
The geography, climate and plants behind each season here, with a source for every fact.
The Appalachian Mountains partially block cold air coming from the Midwest, which moderates North Carolina’s winter temperatures somewhat.2 Between those mountains in the west and the Coastal Plain to the east lies the Piedmont plateau of the state’s central region.2 At Piedmont Triad International Airport, winters average about 42 °F, and about 7 inches of snow falls in a typical year.1 In the Greensboro area, the last spring freeze of 32 °F has come as early as March 7, in 2010, and as late as May 8, in 1989, according to the National Weather Service in Raleigh.3
Eastern redcedar, a juniper found in North Carolina, sheds wind-dispersed pollen from February in the south and east of its range to May in the north and west.4 NC State Extension Forestry notes that tree pollen production begins as early as February with juniper and maple, and that tree pollen counts typically peak between late March and early April.5 Pine pollen is the most visible, but its grains are larger and less allergenic than those of hardwoods such as oak and hickory.5
Common ragweed grows in every North Carolina county, Guilford among them, and flowers and fruits from August to October.6
Sources
- U.S. Climate Normals 1991–2020: Piedmont Triad International Airport (USW00013723). NOAA National Centers for Environmental Information. Read on October 15, 2026.
- North Carolina, State Climate Summaries 2022. NOAA National Centers for Environmental Information and CISESS. Read on October 15, 2026.
- NWS Raleigh Frost Freeze Information and Climatology Maps. National Weather Service, Raleigh, NC. Read on October 15, 2026.
- Juniperus virginiana, eastern redcedar. USDA Forest Service, Fire Effects Information System. Read on October 15, 2026.
- Yellow Dust: Navigating the North Carolina Pine Pollen Season. NC State Extension Forestry. Read on October 15, 2026.
- Common Ragweed (Ambrosia artemisiifolia), Vascular Plants of North Carolina. North Carolina Biodiversity Project and North Carolina State Parks. Read on October 15, 2026.
Questions about pollen in Greensboro
Answered from the values on this page.
Is pollen high in Greensboro today?
No. The highest level in Greensboro today, Wednesday, November 4, is very low (1 on the 0 to 5 index), led by ragweed. Weed pollen is very low.
Which pollen is in the air in Greensboro today?
According to Google’s model: Ragweed (very low). Plants Google doesn’t model, and mold, aren’t included.
Will pollen be higher tomorrow in Greensboro?
No. Google’s forecast for tomorrow, Thursday, is very low (1 on the 0 to 5 index), the same as today.
Is this a pollen count?
No. It’s Google’s modeled pollen index, from 0 (none) to 5 (very high), calculated for the location of central Greensboro. A pollen count is the number of pollen grains measured in a cubic meter of air at a counting station. How our pollen index works.
When does this page update?
Twice a day. We fetch new values soon after midnight in Greensboro, so each day starts with its own values, and again after Google’s daily model run, usually by about 10:30 am ET. Each section shows when its values were retrieved.
How long has AllergyNest recorded pollen in Greensboro?
Since October 14, 2026. The year in pollen above fills in as each day is recorded, and weeks before then show no data. Google doesn’t provide past values, so nothing earlier can be added.
Source: Includes pollen data from GoogleIncludes data from Google Maps