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Checking today's conditions
Gathering pollen, air quality, and weather data for you.
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Gathering pollen, air quality, and weather data for you.
Gathering pollen, air quality, and weather data for you.
Pollen Level
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Air Quality
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Weather
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Modesto's allergy season varies with proximity to the coast. Coastal breezes help, but residents of Modesto, CA can still experience significant pollen from February through October, especially during dry, warm spells.
Right now: September weed pollen continues in Modesto. AQI can be poor from wildfire smoke — check both metrics.
Spring
Feb – May
Tree pollen starts early — alder, birch, and oak are primary triggers.
Summer
May – Jul
Grass pollen peaks. Inland valleys see significantly higher counts than the coast.
Fall
Aug – Oct
Ragweed and sagebrush in drier areas. Coastal cities see lower counts.
Ocean breezes near Modesto can help clear pollen, but inland valleys trap allergens. Wildfire season also degrades air quality significantly. PollenTracker monitors both pollen and AQI to give you the full picture.
Open another nearby forecast without going back to the map.
YES
Conditions are favorable today. No special precautions needed.
Air quality: AQI is 40 (good).
Best hours: 11:00, 20:00-21:00
Some data is estimated or unavailable today.
Pollen Level
Unavailable
Live pollen data is currently unavailable.
Weather
73°F
Partly Cloudy · 26% humidity · 7 mph wind