Pollen Level
Loading
Fetching live data
Loading city data
Current Conditions
Air Quality
Loading
Fetching live data
Weather
Loading
Fetching live data
Checking today's conditions
Gathering pollen, air quality, and weather data for you.
Loading city data
Pollen Level
Loading
Fetching live data
Air Quality
Loading
Fetching live data
Weather
Loading
Fetching live data
Gathering pollen, air quality, and weather data for you.
Gathering pollen, air quality, and weather data for you.
Pollen Level
Loading
Fetching live data
Air Quality
Loading
Fetching live data
Weather
Loading
Fetching live data
San Antonio experiences an extended allergy season due to the warm climate, often starting in late January with cedar pollen and lasting through November with ragweed. Residents of San Antonio, TX deal with some of the highest pollen counts in the country.
Right now: August marks the start of ragweed in San Antonio. Combined with lingering grass, allergen loads spike.
Winter–Spring
Jan – May
Cedar fever peaks Jan–Feb. Oak and elm follow in spring.
Summer
May – Aug
Grass pollen dominates, especially Bermuda and Johnson grass.
Fall
Aug – Nov
Ragweed season extends late due to warm temperatures.
The area around San Antonio is notorious for 'cedar fever' in winter — a challenge unique to this region. PollenTracker monitors cedar, grass, and ragweed levels so you can manage symptoms year-round.
Open another nearby forecast without going back to the map.
YES
Conditions are favorable today. No special precautions needed.
Pollen: Tree pollen risk is low today; source reading: Google UPI 0/5 (None).
Best hours: 11:00, 11:00-12:00
Pollen Level
None
Google UPI 0/5 · Tree
Weather
81°F
Sunny · 77% humidity · 11 mph wind
Google UPI 0/5
Google UPI 0/5
Google UPI 0/5