• Fri

    May 15

    75°Lo 54°

    Increasing cloudiness

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
  • Sat

    May 16

    82°Lo 60°

    Warm with clouds and sun

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Sun

    May 17

    82°Lo 58°

    Cloudy and warm

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Mon

    May 18

    83°Lo 52°

    Clouds and warm with a shower

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
  • Tue

    May 19

    73°Lo 57°

    Couple of thunderstorms

    Very Unlikely for a snow day
    • Snow
      0%
    • Ice
      0%
    • Snow
      0 in
    more
Next Previous
Hi 75° RealFeel® 78° Precipitation 1%

Day

N

E

S

W

  • SSW 7 mph
  • Gusts: 20 mph

Increasing cloudiness

  • Max UV Index: 7 (High)
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 54° RealFeel® 48° Precipitation 55%

Night

N

E

S

W

  • SSW 6 mph
  • Gusts: 14 mph

Partly cloudy with a passing shower

  • Max UV Index: N/A
  • Thunderstorms: 20%
  • Precipitation: 0.05 in
  • Rain: 0.05 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs

Temperature History - May 15

more Historical Weather Data >
  Today Normal Record 5/15/2014
High 75° 71° 88° (2007) 55°
Low 54° 48° 37° (1997) 42°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:34 AM with 14:31 of sunlight, then sets at 8:05 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:04 AM with 13:19 of moolight, then sets at 5:23 PM

Joliet Weather Report

Chicago: Warm, Stormy Weather to Span the Week

May 6, 2015; 12:11 AM ET

Showers and thunderstorms are in the offing for the Chicago area through the end of the week, in addition to doses of above-average warmth. more >

The 540 Snow Line

Dec 20, 2012; 5:00 AM ET The 540 line is often used by meteorologists to determine the chances of rain vs. snow.