July 12, 2014; 8:59 AM ET
Strong thunderstorms will threaten Chicago this weekend before the city gets a taste of September. more >
Intervals of clouds and sunshine with a shower or thunderstorm around, mainly later; not as warm
Clear and cool
Rises at 5:28 AM with 14:59 of sunlight, then sets at 8:27 PM
Rises at 9:51 PM with 11:37 of moolight, then sets at 9:28 AM
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.