July 12, 2011 12:12 am Forecast: Expect a Brutally Hot Tuesday Heat and humidity will be making things uncomfortable Tuesday as the fourth Heat Wave of the season lingers on. US & World Videos 2:50 One more cool day, then warmer weather ahead 3:15 Cold night, then a big warmup this weekend 3:05 Temperatures to heat up over the weekend 2:05 Warming into the 80s by weekend's end 2:09 Big weekend warm-up expected