• Today

    May 18

    85°Lo 68°

    Partly sunny and humid

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

  • Sun

    May 19

    85°Lo 60°

    A few t-storms, some severe

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

  • Mon

    May 20

    74°Lo 53°

    Showers around; not as warm

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

  • Tue

    May 21

    64°Lo 50°

    Cloudy with a shower possible

    Extreme indoor dust & dander levels
    • Precip
      30%
    • Wind
      Speed
      10 mph
    • Cloud
      Cover
      95%
    more

  • Wed

    May 22

    63°Lo 46°

    Times of clouds and sun

    Extreme indoor dust & dander levels
    • Precip
      25%
    • Wind
      Speed
      8 mph
    • Cloud
      Cover
      70%
    more
Next Previous
Hi 85° RealFeel® 87° Precipitation 65%

Day

N

E

S

W

  • SSE 12 mph
  • Gusts: 20 mph

A few t-storms, some severe; storms can bring downpours, large hail, damaging winds, and a tornado

  • Max UV Index: 5 (Moderate)
  • Thunderstorms: 100%
  • Precipitation: 0.45 in
  • Rain: 0.45 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 2.5 hrs
  • Hours of Rain: 2.5 hrs
Lo 60° RealFeel® 55° Precipitation 55%

Night

N

E

S

W

  • SSW 8 mph
  • Gusts: 14 mph

Mostly cloudy with a shower or thunderstorm around

  • Max UV Index: N/A
  • Thunderstorms: 60%
  • Precipitation: 0.1 in
  • Rain: 0.1 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs

South Sioux City Pollen Levels - May 19

  • Extreme
  • Very High
  • High
  • Moderate
  • Low

  • Grass

    Pollen

    Low

  • Weed

    Pollen

    Low

  • Tree

    Pollen

    Low

  • Mold

    Pollen

    Low

Temperature History - May 19

more Historical Weather Data >
  Today Normal Record 5/19/2012
High 85° 74° 97° (2009) 83°
Low 60° 50° 32° (2002) 60°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:00 AM with 14:44 of sunlight, then sets at 8:44 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:43 PM with 12:18 of moolight, then sets at 3:01 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.

Sun. Pollen

Sun. Dust & Dander

Sun. Wind Maps