• Today

    Sep 16

    64°Lo 42°

    Fog in the a.m.; mostly sunny

    Watch for hair frizz
    • Wind
      Gust
      7 mph
    • Precip
      4%
    • Hours of Precip
      0
    more
  • Wed

    Sep 17

    67°Lo 45°

    Mostly sunny and nice

    Watch for hair frizz
    • Wind
      Gust
      4 mph
    • Precip
      5%
    • Hours of Precip
      0
  • Thu

    Sep 18

    68°Lo 49°

    Sunshine and nice

    Watch for hair frizz
    • Wind
      Gust
      10 mph
    • Precip
      1%
    • Hours of Precip
      0
    more
  • Fri

    Sep 19

    73°Lo 59°

    Nice with periods of sun

    Watch for hair frizz
    • Wind
      Gust
      17 mph
    • Precip
      5%
    • Hours of Precip
      0
    more
  • Sat

    Sep 20

    79°Lo 62°

    A couple of p.m. t-storms

    Advisory for hair frizz
    • Wind
      Gust
      25 mph
    • Precip
      60%
    • Hours of Precip
      7
    more
Next Previous
Hi 67° RealFeel® 72° Precipitation 5%

Day

N

E

S

W

  • NNW 3 mph
  • Gusts: 4 mph

Mostly sunny and nice

  • Max UV Index: 5 (Moderate)
  • Thunderstorms: 2%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 45° RealFeel® 44° Precipitation 3%

Night

N

E

S

W

  • NE 2 mph
  • Gusts: 4 mph

Clear

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

Temperature History - Sep 17

more Historical Weather Data >
  Today Normal Record 9/17/2013
High 67° 75° N/A 71°
Low 45° 54° N/A 44°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:35 AM with 12:25 of sunlight, then sets at 7:00 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:31 AM with 14:41 of moolight, then sets at 3:12 PM

Top Story

Saint Charles Weather Report

Chicago: Cooler, Fall-Like Temperatures to Linger

September 16, 2014; 6:45 AM ET

The cooler, below-average conditions responsible for the fall-like feel will hold through the end of the week over the Chicago area. more >

The History Behind the UV Index

Nov 12, 2012; 5:00 AM ET The UV index has been around since the early 1990s. It was created to help you plan outdoor activities in hopes to limit overexposure to the sun. Jeannette Calle has more.

Wed. Hair Frizz

Wed. Wind Maps

Wed. UV Index