• Mon

    May 18

    82°Lo 60°

    An afternoon thunderstorm

    Ragweed Pollen Weather
    • Precip
      58%
    • Wind
      Speed
      13 mph
    • Cloud
      Cover
      70%
    more
  • Tue

    May 19

    74°Lo 56°

    An afternoon shower

    Ragweed Pollen Weather
    • Precip
      55%
    • Wind
      Speed
      10 mph
    • Cloud
      Cover
      30%
    more
  • Wed

    May 20

    75°Lo 57°

    Warm with periods of rain

    Ragweed Pollen Weather
    • Precip
      76%
    • Wind
      Speed
      1 mph
    • Cloud
      Cover
      65%
  • Thu

    May 21

    76°Lo 57°

    Periods of rain

    Ragweed Pollen Weather
    • Precip
      66%
    • Wind
      Speed
      4 mph
    • Cloud
      Cover
      78%
    more
  • Fri

    May 22

    78°Lo 57°

    Cloudy, a little rain; warm

    Ragweed Pollen Weather
    • Precip
      59%
    • Wind
      Speed
      5 mph
    • Cloud
      Cover
      97%
    more
Next Previous
Hi 75° RealFeel® 84° Precipitation 76%

Day

N

E

S

W

  • NNW 1 mph
  • Gusts: 2 mph

Warm with periods of rain

  • Max UV Index: 7 (High)
  • Thunderstorms: 11%
  • Precipitation: 0.81 in
  • Rain: 0.81 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 8 hrs
  • Hours of Rain: 8 hrs
Lo 57° RealFeel® 56° Precipitation 75%

Night

N

E

S

W

  • ESE 5 mph
  • Gusts: 7 mph

Overcast with rain tapering to a couple of showers

  • Max UV Index: N/A
  • Thunderstorms: 20%
  • Precipitation: 0.27 in
  • Rain: 0.27 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 3.5 hrs
  • Hours of Rain: 3.5 hrs

Temperature History - May 20

more Historical Weather Data >
  Today Normal Record 5/20/2014
High 75° 72° 94° (1975) 84°
Low 57° 50° 35° (1993) 56°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:30 AM with 14:43 of sunlight, then sets at 8:13 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 7:52 AM with 14:48 of moolight, then sets at 10:40 PM

DeKalb Weather Report

Chicago: Temperature Roller Coaster in Store for New Week

May 3, 2015; 11:27 AM ET

The month of May has opened the door for warm air to flow into the Chicago area following a cool end to April. more >