• Today

    Aug 24

    81°Lo 70°

    Heavy rain and a thunderstorm

    High ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      5 - High
    • Tree
      Pollen
      1 - Low
    more
  • Thu

    Aug 25

    80°Lo 58°

    Mostly cloudy with a t-storm

    High ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      5 - High
    • Tree
      Pollen
      1 - Low
  • Fri

    Aug 26

    78°Lo 59°

    Clouds and sun; less humid

    High ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      5 - High
    • Tree
      Pollen
      1 - Low
    more
  • Sat

    Aug 27

    80°Lo 67°

    Couple of thunderstorms

    High ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      5 - High
    • Tree
      Pollen
      1 - Low
    more
  • Sun

    Aug 28

    84°Lo 64°

    Humid with low clouds

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Hi 80° RealFeel® 88° Precipitation 55%

Day

N

E

S

W

  • W 7 mph
  • Gusts: 12 mph

Mostly cloudy and humid with a shower or thunderstorm around

  • Max UV Index: 4 (Moderate)
  • Thunderstorms: 40%
  • Precipitation: 0.2 in
  • Rain: 0.2 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1.5 hrs
  • Hours of Rain: 1.5 hrs
Lo 58° RealFeel® 58° Precipitation 16%

Night

N

E

S

W

  • NW 4 mph
  • Gusts: 7 mph

Partly cloudy and cooler

  • Max UV Index: N/A
  • Thunderstorms: 20%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

St. Charles Pollen Levels - August 25

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

    Low

  • Ragweed Pollen

    High

  • Mold

    High

  • Grass Pollen

    Low

Temperature History - Aug 25

more Historical Weather Data >
  Today Normal Record 8/25/2015
High 80° 81° 95° (2003) 72°
Low 58° 62° 55° (2015) 55°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:12 AM with 13:25 of sunlight, then sets at 7:37 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:32 PM with 19:48 of moolight, then sets at 2:21 PM

St. Charles Weather Report

Strong thunderstorms to target St. Louis to Chicago into Thursday

August 24, 2016; 1:25 PM ET

Rounds of showers and thunderstorms will bring the potential for flash flooding and localized damaging wind gusts through Thursday. more >

Thu. Pollen

Thu. Dust & Dander

Thu. Wind Maps