• Tonight

    Aug 21

    Lo 72°

    Showers and a heavier t-storm

    Lawn Mowing Weather
    • Hours of Precip
      9
    • Precip
      80%
    • Hi
      RealFeel
      86°
  • Fri

    Aug 22

    89°Lo 69°

    Warmer with a thunderstorm

    Poor for lawn mowing
    • Hours of Precip
      2.5
    • Precip
      62%
    • Hi
      RealFeel
      102°
    more
  • Sat

    Aug 23

    82°Lo 68°

    Periods of sun with a t-storm

    Fair for lawn mowing
    • Hours of Precip
      3
    • Precip
      57%
    • Hi
      RealFeel
      93°
    more
  • Sun

    Aug 24

    88°Lo 71°

    Very warm with clouds and sun

    Good for lawn mowing
    • Hours of Precip
      2
    • Precip
      25%
    • Hi
      RealFeel
      95°
    more
  • Mon

    Aug 25

    88°Lo 68°

    An afternoon thunderstorm

    Fair for lawn mowing
    • Hours of Precip
      2.5
    • Precip
      51%
    • Hi
      RealFeel
      95°
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Thu
9pm
10pm 11pm Fri
12am
1am 2am 3am 4am
  9pm 10pm 11pm 12am 1am 2am 3am 4am
Forecast
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
T-storms
Mostly Cloudy
Mostly Cloudy
T-storms
Mostly Cloudy
Temp (°F) 75° 75° 75° 75° 74° 74° 74° 74°
RealFeel® 79° 77° 77° 74° 77° 77° 76° 78°
Humidity 91% 88% 87% 89% 90% 90% 90% 90%
   
  9pm 10pm 11pm 12am 1am 2am 3am 4am
Rain
 
34%
 
37%
 
47%
 
51%
 
47%
 
47%
 
51%
 
43%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  9pm 10pm 11pm 12am 1am 2am 3am 4am
Wind (mph) 5 SSE 5 SSE 5 SSE 4 S 4 S 3 SSW 3 SSW 3 SW
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 78% 82% 82% 80% 77% 75% 76% 76%
Dew Point 72° 71° 71° 71° 71° 71° 71° 71°
Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F

Temperature History - Aug 21

more Historical Weather Data >
  Today Normal Record 8/21/2013
High 77° 80° N/A 90°
Low 72° 62° N/A 66°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:05 AM with 13:39 of sunlight, then sets at 7:44 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 2:33 AM with 14:40 of moolight, then sets at 5:13 PM

Top Story

Lake Forest Weather Report

Chicago: Threat of Thunderstorms Lingers After Heavy Rains Flood Wrigley Field

August 21, 2014; 12:59 PM ET

While there may be a mix of sunshine and clouds over the area, Chicago is facing more rounds of thunderstorms over the next several days. more >

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Current Drought Status

Current Soil Conditions

Thu. Overnight Freeze

Thu. Degree Days

Thu. Evapotranspiration