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    • Today

      May 29

      79° /56°F
      A thunderstorm in spots
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Low
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: Low
      • Tree Pollen: Moderate
    • Tue

      May 30

      74° /54°
      Breezy with partial sunshine
      • Low
      • ragweed pollen levels
      • Grass Pollen: High
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Wed

      May 31

      71° /49°
      Periods of clouds and sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: High
      • Ragweed Pollen: Low
      • Tree Pollen: High
      More
    • Thu

      Jun 1

      73° /61°
      Mostly sunny and delightful
      • Low
      • ragweed pollen levels
      • Grass Pollen: High
      • Ragweed Pollen: Low
      • Tree Pollen: High
      More
    • Fri

      Jun 2

      79° /62°
      A morning thunderstorm or two
      • Low
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: Low
      • Tree Pollen: Moderate
      More

    Day

    79°Hi RealFeel® 80° Precipitation 50%
    A blend of sun and clouds; breezy this afternoon with a shower or thunderstorm in spots later
    • WSW 12 mph
    • Gusts: 26 mph
    • Max UV Index: 8 (Very High)
    • Thunderstorms: 40%
    • Precipitation: 0.04 in
    • Rain: 0.04 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0.5 hrs
    • Hours of Rain: 0.5 hrs

    Night

    56°Lo RealFeel® 54° Precipitation 25%
    Partly cloudy
    • SW 7 mph
    • Gusts: 16 mph
    • Max UV Index: N/A
    • Thunderstorms: 40%
    • Precipitation: 0 in
    • Rain: 0 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 0 hrs
    • Hours of Rain: 0 hrs

    Williamstown Pollen Levels May 29

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

      Moderate

    • Ragweed Pollen

      Low

    • Mold

      High

    • Grass Pollen

      Moderate

    Temperature History

    more Historical Weather Data >
      Today Normal Record 5/29/2016
    High 79° 75° N/A 88°
    Low 56° 54° N/A 66°

    Sunrise/Sunset

    • Sunrise: 6:07 AM
    • Sunset: 8:57 PM
    • Duration: 14:50 hr

    Moonrise/Moonset

    • Moonrise: 10:13 AM
    • Moonset: 12:48 AM
    • Duration: 14:35 hr
    Astronomy

    Mon. Pollen

    Mon. Dust & Dander

    Mon. Wind Maps