• Today

    May 3

    66°Lo 46°

    Partly sunny and warmer

    Excellent for biking
    • Precip
      40%
    • Hours of Precip
      3.5
    • Wind
      Gust
      13 mph
    more
  • Wed

    May 4

    50°Lo 39°

    Becoming windier and cooler

    Good for biking
    • Precip
      40%
    • Hours of Precip
      1
    • Wind
      Gust
      17 mph
  • Thu

    May 5

    57°Lo 42°

    Partly sunny and cool

    Very Good for biking
    • Precip
      2%
    • Hours of Precip
      0
    • Wind
      Gust
      13 mph
    more
  • Fri

    May 6

    75°Lo 57°

    Pleasant and warmer

    Excellent for biking
    • Precip
      6%
    • Hours of Precip
      0
    • Wind
      Gust
      10 mph
    more
  • Sat

    May 7

    68°Lo 42°

    A shower and t-storm around

    Very Good for biking
    • Precip
      75%
    • Hours of Precip
      4.5
    • Wind
      Gust
      18 mph
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Wed
7am
8am 9am 10am 11am 12pm 1pm 2pm
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Forecast
Showers
Mostly Cloudy
Mostly Cloudy
Cloudy
Cloudy
Cloudy
Showers
Cloudy
Temp (°F) 46° 46° 47° 47° 47° 48° 48° 49°
RealFeel® 35° 39° 40° 40° 42° 43° 42° 45°
Humidity 89% 83% 79% 75% 70% 67% 66% 65%
   
  7am 8am 9am 10am 11am 12pm 1pm 2pm
Rain
 
52%
 
38%
 
32%
 
36%
 
43%
 
47%
 
51%
 
38%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
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  7am 8am 9am 10am 11am 12pm 1pm 2pm
Wind (mph) 13 N 13 N 13 N 14 N 14 N 13 N 13 N 12 N
UV Index 0 0 1 2 2 2 2 3
Cloud Cover 90% 89% 89% 90% 92% 95% 96% 94%
Dew Point 43° 42° 41° 40° 38° 37° 37° 37°
Middle Grid line 50 F Middle Grid line 45 F

Temperature History - May 4

more Historical Weather Data >
  Today Normal Record 5/4/2015
High 50° 62° N/A 69°
Low 39° 44° N/A 47°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:42 AM with 14:13 of sunlight, then sets at 7:55 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:32 AM with 12:55 of moolight, then sets at 5:27 PM

Lake Forest Weather Report

Chicago: Temperature roller coaster in store for this week

May 3, 2016; 4:03 AM ET

The start of May will bring a fluctuation in temperatures throughout the week in Chicago. more >

Is Your Outdoor Gear Waterproof?

Dec 5, 2012; 5:00 AM ET Now that it's cold enough to hit the slopes, you may want to look more closely at what materials your winter sports gear is made of. As it turns out, not all waterproofing is created equal.