forecast March 21, 2023 11:42 am Spring Weather in Full Force With Sunshine and Mild Air Today: Fair and mild. Highs in the 50s. Overnight Tuesday Night: Mostly cloudy, calm. Lows in the 30s. Wednesday: Variable clouds, sea breeze. Highs in the 50s. US & World Videos 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 3:45 Afternoon rains expected on Sunday