High Pollen in Portsmouth, VA
High today, mostly weed pollen.
Last updated September 30, 2026
Driving it today
Forecast
About pollen in Portsmouth
Weed pollen is the main story in Portsmouth today, running high and likely noticeable for anyone with sensitivities. Tree and grass pollen, by contrast, are barely registering and shouldn't cause much concern. If you tend to react to ragweed, this is the pollen type to plan around as you head outdoors. Looking ahead, this pattern is expected to hold steady over the next several days, with weed pollen remaining high while tree and grass stay quiet. This lines up with the season: early fall is peak time for ragweed and related weeds, while the oaks, maples, and pines common to the area have long since finished their spring pollen release, and grasses are well past their late-spring peak as well. Expect weed pollen to stay the dominant factor until cooler weather sets in later in the season.
What to do today
- Avoid mowing the lawn and raking leaves.
- When driving the car, close your windows and turn the air conditioning system to recirculation mode.
- Keep your windows closed and turn on your air purifier or air conditioning.
- Consider staying indoors during the peak pollen hours (morning and early afternoon).
Common questions
- What is the pollen count in Portsmouth, VA today?
- Portsmouth, VA is at a high 4 out of 5 on the Universal Pollen Index today, driven mainly by weed pollen. The five-day outlook holds steady around 4 of 5.
- Is weed pollen high in Portsmouth, VA right now?
- Weed pollen is high today at 4 of 5, and it's in season now. Many allergy sufferers will have symptoms.
- What plants are causing allergies in Portsmouth, VA?
- The main sources right now are Ragweed. Ragweed (Asteraceae (the daisy family), Late summer, fall) is actively pollinating.