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    Next 5 Days
    • Current Weather

      79° F
      Mostly cloudy
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Relative Humidity: 71%
      • Yesterday Temp: 85°
      • RealFeel: 79°
    • Today

      Jun 18

      85° Hi
      Heavy afternoon thunderstorms
      • Low
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: Low
      • Tree Pollen: Moderate
      } Day Details
    • Tomorrow

      Jun 19

      73° Hi
      Mostly sunny; not as warm
      • Low
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: Low
      • Tree Pollen: High
      } Day Details
    • Wednesday

      Jun 20

      72° Hi
      Mostly sunny; pleasant
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: High
      } Day Details
    Next 6 Hours
    • 4PM

      Jun 18

      79°
      Thunderstorms
      Precip 52%
    • 5PM

      78°
      Thunderstorms
      Precip 53%
    • 6PM

      77°
      Intermittent clouds
      Precip 49%
    • 7PM

      76°
      Mostly cloudy w/ t-storms
      Precip 58%
    • 8PM

      75°
      Thunderstorms
      Precip 53%
    • 9PM

      73°
      Cloudy
      Precip 49%

    Williamstown Pollen Levels Jun 18

    • Extreme
    • Very High
    • High
    • Moderate
    • Low
    • Tree Pollen

      Moderate

    • Ragweed Pollen

      Low

    • Mold

      Low

    • Grass Pollen

      Moderate

    While the week will begin with record-challenging temperatures in the Northeast, storms will help reduce the heat and humidity by midweek.
    Storms to bring heat relief to Northeast by midweek

    Allergies Live Feed

    Mon. Pollen

    Mon. Dust & Dander

    Mon. Wind Maps