March 21, 2017 12:18 am NBC10 First Alert Weather: First Week of Spring a Roller Coaster We’re in for roller coaster temperatures during the first week of spring. NBC10 First Alert Weather chief meteorologist Glenn Schwartz has the details. 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