forecast December 22, 2020 12:28 pm Clouds to Fair Sky for Tuesday Tuesday: Clouds to fair sky. Highs around 40. Overnight Tuesday: Chilly wind, clear sky. Lows around 20, wind chill around 10. Wednesday: Mostly sunny, chilly morning breeze. Highs in the 30s. US & World Videos 3:13 Weather forecast: Clear and sunny, with temps in the 70s 2:31 Another warm day in Boston with plenty of sunshine 2:44 Tuesday is the last dry and hot day this week 2:18 Weather forecast: Sunny and mild 3:19 Partly cloudy, high temps reach near 70