• Today

    Sep 20

    79°Lo 59°

    Showers and a heavier t-storm

    Advisory for hair frizz
    • Wind
      Gust
      26 mph
    • Precip
      65%
    • Hours of Precip
      2
  • Sun

    Sep 21

    65°Lo 49°

    Cooler with a stray shower

    Advisory for hair frizz
    • Wind
      Gust
      21 mph
    • Precip
      42%
    • Hours of Precip
      1
    more
  • Mon

    Sep 22

    65°Lo 47°

    Sunshine and patchy clouds

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

    Sep 23

    71°Lo 50°

    Mostly sunny and delightful

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

    Sep 24

    74°Lo 51°

    Brilliant sunshine

    Watch for hair frizz
    • Wind
      Gust
      9 mph
    • Precip
      8%
    • Hours of Precip
      0
    more
Next Previous
Hi 79° RealFeel® 77° Precipitation 65%

Day

N

E

S

W

  • SW 12 mph
  • Gusts: 26 mph

Mostly cloudy; showers and a heavier t-storm this afternoon; thunderstorms can bring damaging winds

  • Max UV Index: 3 (Moderate)
  • Thunderstorms: 60%
  • Precipitation: 0.35 in
  • Rain: 0.35 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs
Lo 59° RealFeel® 53° Precipitation 55%

Night

N

E

S

W

  • WSW 6 mph
  • Gusts: 14 mph

A shower or thunderstorm this evening; otherwise, mostly cloudy

  • Max UV Index: N/A
  • Thunderstorms: 45%
  • Precipitation: 0.1 in
  • Rain: 0.1 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs

Temperature History - Sep 20

more Historical Weather Data >
  Today Normal Record 9/20/2013
High 79° 74° N/A 77°
Low 59° 52° N/A 60°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:34 AM with 12:16 of sunlight, then sets at 6:50 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:12 AM with 13:43 of moolight, then sets at 4:55 PM

Top Story

Merrillville Weather Report

Chicago: Thunderstorms to Precede More Cool Air

September 20, 2014; 4:28 AM ET

Chicago is facing the threat of some disruptive thunderstorms on Saturday. 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.

Sat. Hair Frizz

Sat. Wind Maps

Sat. UV Index