• Mon

    May 25

    77°Lo 59°

    Cloudy with a little rain

    Hair Frizz Weather
    • Wind
      Gust
      18 mph
    • Precip
      56%
    • Hours of Precip
      3.5
    more
  • Tue

    May 26

    78°Lo 59°

    Occasional afternoon rain

    Hair Frizz Weather
    • Wind
      Gust
      14 mph
    • Precip
      61%
    • Hours of Precip
      1.5
    more
  • Wed

    May 27

    78°Lo 58°

    A shower in the afternoon

    Hair Frizz Weather
    • Wind
      Gust
      20 mph
    • Precip
      55%
    • Hours of Precip
      1
  • Thu

    May 28

    76°Lo 57°

    Mostly cloudy, showers around

    Hair Frizz Weather
    • Wind
      Gust
      15 mph
    • Precip
      60%
    • Hours of Precip
      4
    more
  • Fri

    May 29

    75°Lo 57°

    Sunny

    Hair Frizz Weather
    • Wind
      Gust
      14 mph
    • Precip
      20%
    • Hours of Precip
      0
    more
Next Previous
Hi 78° RealFeel® 80° Precipitation 55%

Day

N

E

S

W

  • SSW 9 mph
  • Gusts: 20 mph

Mostly sunny and warm; a shower in the afternoon

  • Max UV Index: 8 (Very High)
  • Thunderstorms: 20%
  • Precipitation: 0.06 in
  • Rain: 0.06 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs
Lo 58° RealFeel® 58° Precipitation 25%

Night

N

E

S

W

  • SW 5 mph
  • Gusts: 13 mph

Partly cloudy

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

Temperature History - May 27

more Historical Weather Data >
  Today Normal Record 5/27/2014
High 78° 76° 95° (1911) 83°
Low 58° 54° 33° (1895) 64°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:27 AM with 14:51 of sunlight, then sets at 8:18 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:32 PM with 12:10 of moolight, then sets at 2:42 AM

Ottawa Weather Report

Chicago: Warm, Stormy Weather to Span the Week

May 5, 2015; 12:36 PM 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 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.