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    • Today

      Aug 18

      82° /67°F
      Periods of rain and a t-storm
      • Ragweed Pollen
        • Ragweed Pollen
        • Grass Pollen
        • Tree Pollen
        • Mold
        • Dust & Dander
        • Air Quality Index
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
    • Sat

      Aug 19

      84° /64°
      Humid with periods of sun
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Sun

      Aug 20

      82° /62°
      Sunshine and patchy clouds
      • Low
      • ragweed pollen levels
      • Grass Pollen: Low
      • Ragweed Pollen: Low
      • Tree Pollen: Low
      More
    • Mon

      Aug 21

      86° /67°
      Partly sunny
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: Moderate
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More
    • Tue

      Aug 22

      88° /67°
      An afternoon thunderstorm
      • Moderate
      • ragweed pollen levels
      • Grass Pollen: High
      • Ragweed Pollen: Moderate
      • Tree Pollen: Low
      More

    Day

    82°Hi RealFeel® 85° Precipitation 70%
    Periods of rain and a thunderstorm
    • Winds from the
    • SSE 12 mph
    • Gusts: 20 mph
    • Max UV Index: 5 (Moderate)
    • Thunderstorms: 33%
    • Precipitation: 0.27 in
    • Rain: 0.27 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 3 hrs
    • Hours of Rain: 3 hrs

    Night

    67°Lo RealFeel® 67° Precipitation 57%
    An evening shower; otherwise, mostly cloudy and humid
    • Winds from the
    • S 6 mph
    • Gusts: 12 mph
    • Max UV Index: N/A
    • Thunderstorms: 29%
    • Precipitation: 0.06 in
    • Rain: 0.06 in
    • Snow: 0 in
    • Ice: 0 in
    • Hours of Precipitation: 1 hrs
    • Hours of Rain: 1 hrs

    Williston Pollen Levels Aug 18

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

      Low

    • Ragweed Pollen

      Low

    • Mold

      Low

    • Grass Pollen

      Low

    Temperature History

    more Historical Weather Data >
      Today Normal Record 8/18/2016
    High 82° 79° 93° (2002) 84°
    Low 67° 58° 40° (1918) 64°

    Sunrise/Sunset

    • Sunrise: 5:58 AM
    • Sunset: 7:53 PM
    • Duration: 13:55 hr

    Moonrise/Moonset

    • Moonrise: 2:21 AM
    • Moonset: 5:37 PM
    • Duration: 15:16 hr
    Astronomy

    Fri. Pollen

    Fri. Dust & Dander

    Fri. Wind Maps