weather forecast December 15, 2021 11:42 pm NBC10 First Alert Weather: Unseasonable Warmth Continues The unseasonable December warmth will continue on Thursday. NBC10 First Alert Weather meteorologist Krystal Klei has the forecast. US & World Videos 2:41 The weekend kicks off with mostly cloudy skies and passing showers 2:31 Back to cooler temperatures 2:36 Back to spring temperatures 3:04 Seasonable temperatures return to end the week 2:44 One last warm, sunny day before changes this weekend