Today's pollen count measures the concentration of pollen in the air right now — rated Low, Moderate, High, or Very High. Knowing the pollen count before you head outside can help you plan your day and manage allergy symptoms.
Peak season: Year-round — tree pollen (spring), grass pollen (summer), ragweed (fall)
Most affected regions: Southeast, South, Midwest, Mid-Atlantic
Common symptoms: Sneezing, itchy eyes, runny nose, congestion, scratchy throat.
Today's pollen count depends on your location. Select your city from the list above to see live pollen levels updated every 12 hours. Counts are rated Low, Moderate, High, or Very High based on pollen grains per cubic meter of air.
A pollen count above 500 grains per cubic meter is generally considered very high for tree pollen. For grass pollen, counts above 50 are considered high. For ragweed, counts above 50 can trigger symptoms in sensitive individuals.
Pollen counts spike on warm, dry, and windy days. Low humidity and wind carry pollen long distances. Rain temporarily clears the air. A sudden warm spell after a cold period often triggers a surge in tree pollen as multiple species bloom simultaneously.