Moderate Pollen in Modesto, CA
Moderate today, mostly weed pollen.
Last updated September 30, 2026
Driving it today
Forecast
About pollen in Modesto
Weeds are the main story in Modesto today, with a moderate presence that sensitive individuals will likely notice, particularly during outdoor activity in the afternoon. Grass pollen is barely registering and shouldn't cause much trouble, while tree pollen is essentially absent right now. Looking ahead, this pattern should hold steady over the next several days, with weeds remaining the primary concern and grass staying minimal. This lines up with the season: early fall is typically ragweed and other late-blooming weeds' peak stretch in the Central Valley, while oak, ash, and other common local trees have long since finished their spring pollen release and won't be active again until conditions warm next year.
What to do today
- It's important to shower and wash your hair after spending a lot of time outdoors.
- When spending time outside, use sunglasses and a cap to keep pollen out of your face and eyes.
- Wash clothes worn outdoors to remove any remnants of pollen grains.
- If possible, wear glasses instead of contact lenses.
- Did you hang any laundry outside? Now is a good time to hang clothes indoors or use a dryer if possible.
Common questions
- What is the pollen count in Modesto, CA today?
- Modesto, CA is at a moderate 3 out of 5 on the Universal Pollen Index today, driven mainly by weed pollen. The five-day outlook holds steady around 3 of 5.
- Is weed pollen high in Modesto, CA right now?
- Weed pollen is moderate today at 3 of 5, and it's in season now. Sensitive people may notice symptoms.
- What plants are causing allergies in Modesto, CA?
- The main sources right now are Grasses and Ragweed. Elm (Ulmaceae (the Elm family), Two distinct seasons, late winter to early spring, and late summer to fall (species dependent)) is actively pollinating.