• Today

    May 18

    67°Lo 52°

    A couple of thunderstorms

    Extreme indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      7 - Low

  • Sun

    May 19

    62°Lo 50°

    Some rain and a thunderstorm

    Extreme indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      7 - Low
    more

  • Mon

    May 20

    60°Lo 37°

    Breezy with rain

    Extreme indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
    more

  • Tue

    May 21

    69°Lo 43°

    A couple of showers possible

    Very High indoor dust & dander levels
    • Precip
      30%
    • Wind
      Speed
      9 mph
    • Cloud
      Cover
      70%
    more

  • Wed

    May 22

    70°Lo 47°

    Partly sunny and breezy

    Extreme indoor dust & dander levels
    • Precip
      8%
    • Wind
      Speed
      14 mph
    • Cloud
      Cover
      26%
    more
Next Previous
Hi 67° RealFeel® 64° Precipitation 62%

Day

N

E

S

W

  • N 9 mph
  • Gusts: 14 mph

Mostly cloudy with a couple of showers and a thunderstorm

  • Max UV Index: 2 (Low)
  • Thunderstorms: 40%
  • Precipitation: 0.19 in
  • Rain: 0.19 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 2.5 hrs
  • Hours of Rain: 2.5 hrs
Lo 52° RealFeel® 44° Precipitation 63%

Night

N

E

S

W

  • N 8 mph
  • Gusts: 14 mph

Overcast with a touch of rain

  • Max UV Index: N/A
  • Thunderstorms: 0%
  • Precipitation: 0.18 in
  • Rain: 0.18 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 2 hrs
  • Hours of Rain: 2 hrs

Williston Pollen Levels - May 18

  • Extreme
  • Very High
  • High
  • Moderate
  • Low

  • Grass

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - May 18

more Historical Weather Data >
  Today Normal Record 5/18/2012
High 67° 68° 95° (1901) 74°
Low 52° 41° 29° (1993) 54°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:12 AM with 15:19 of sunlight, then sets at 9:31 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:06 PM with 12:57 of moolight, then sets at 3:03 AM

How Weather Impacts Seasonal Allergy Symptoms

May 18, 2013; 5:00 AM ET If you suffer with seasonal allergies, the weather can relieve or worsen your symptoms. Marja Martinez has the details.

Sat. Pollen

Sat. Dust & Dander

Sat. Wind Maps