forecast September 21, 2020 7:11 am Sunshine, Highs in the Low 60s Monday Today: Sunny. Highs in the 60s. Overnight Monday: Clear and cool. Lows either side of 40. Tuesday: Windy, sun & clouds, big waves. Highs around 70. US & World Videos 2:18 Weather forecast: Sunny and mild 3:19 Partly cloudy, high temps reach near 70 2:44 It's a cloudy but warm day in Boston 2:53 Monday starts off cloudy with lingering rain 3:45 Forecast: Showers, areas of fog