Philadelphia July 20, 2017 7:06 am NBC10 First Alert Weather: Heat Wave NBC10 First Alert Weather meteorologist Bill Henley sees plenty of highs in the 90s through the end of the week. US & World Videos 3:04 Seasonable temperatures return to end the week 2:44 One last warm, sunny day before changes this weekend 2:22 Another warm day as high temps flirt with record 3:08 One more warm day before temperatures drop over the weekend 2:40 How long will this summer-like warmth last?