• Tonight

    Jul 12

    Lo 68°

    A strong evening thunderstorm

    Frizz Forecast Weather
    • Wind
      Gust
      24 mph
    • Precip
      70%
    • Hours of Precip
      5.5
    more
  • Sun

    Jul 13

    84°Lo 62°

    A morning t-storm in spots

    Frizz Forecast Weather
    • Wind
      Gust
      11 mph
    • Precip
      44%
    • Hours of Precip
      1
    more
  • Mon

    Jul 14

    77°Lo 56°

    Thundershower

    Frizz Forecast Weather
    • Wind
      Gust
      16 mph
    • Precip
      55%
    • Hours of Precip
      0.5
    more
  • Tue

    Jul 15

    70°Lo 55°

    A stray afternoon shower

    Frizz Forecast Weather
    • Wind
      Gust
      13 mph
    • Precip
      43%
    • Hours of Precip
      1
  • Wed

    Jul 16

    70°Lo 56°

    Times of clouds and sun

    Frizz Forecast Weather
    • Wind
      Gust
      7 mph
    • Precip
      25%
    • Hours of Precip
      0.5
    more
Next Previous
Hi 70° RealFeel® 72° Precipitation 43%

Day

N

E

S

W

  • W 8 mph
  • Gusts: 13 mph

Cool with times of clouds and sun; a shower in places in the afternoon

  • Max UV Index: 7 (High)
  • Thunderstorms: 20%
  • Precipitation: 0.02 in
  • Rain: 0.02 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0.5 hrs
  • Hours of Rain: 0.5 hrs
Lo 55° RealFeel® 52° Precipitation 40%

Night

N

E

S

W

  • W 4 mph
  • Gusts: 8 mph

Mainly clear with a shower in places late

  • Max UV Index: N/A
  • Thunderstorms: 20%
  • Precipitation: 0.01 in
  • Rain: 0.01 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0.5 hrs
  • Hours of Rain: 0.5 hrs

Temperature History - Jul 15

more Historical Weather Data >
  Today Normal Record 7/15/2013
High 70° 85° 102° (1988) 89°
Low 55° 64° 52° (1967) 71°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:29 AM with 14:57 of sunlight, then sets at 8:26 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 10:28 PM with 12:12 of moolight, then sets at 10:40 AM

Top Story

Prospect Heights Weather Report

Chicago Faces Strong Storms, to Turn Septemberlike

July 12, 2014; 8:59 AM ET

Strong thunderstorms will threaten Chicago this weekend before the city gets a taste of September. 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.

Tue. Hair Frizz

Tue. Wind Maps

Tue. UV Index