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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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Boise's allergy season is relatively mild compared to other US regions, running from April through September. However, the dry air and altitude around Boise, ID create unique challenges — pollen travels further and dry conditions can irritate airways.
Right now: August brings sagebrush pollen to Boise. This is the primary fall allergen in the Mountain West.
Spring
Apr – Jun
Juniper, pine, and cottonwood tree pollen peak at lower elevations.
Summer
Jun – Aug
Grass pollen peaks. Higher elevations see delayed and shorter seasons.
Fall
Aug – Sep
Sagebrush and ragweed in lower elevations. Season ends earlier at altitude.
Dry air near Boise can carry pollen over longer distances, but lower humidity means less mold than in humid regions. Elevation significantly affects local pollen timing — even a 30-minute drive changes conditions. PollenTracker accounts for these variations.
Open another nearby forecast without going back to the map.
CAUTION
Limit exposure
Ragweed pollen is high and air quality is unhealthy (AQI 136). Keep windows closed and consider a mask outdoors.
Pollen: Ragweed pollen risk is high today; source reading: Google UPI 2/5 (Low).
Lower-risk hours: 11:00-12:00, 21:00
Weather
88°F
Sunny · 9% humidity · 7 mph wind
Google UPI 0/5
Google UPI 0/5