forecast April 18, 2023 7:21 am Clouds to Thicken Throughout Tuesday, Possible Shower Later on Today: Partly cloudy, breezy, isolated sprinkle or shower. Highs in the upper 50s. Tonight: Partly cloudy. Lows in the mid 30s. Tomorrow: Mostly sunny, breezy. Highs in the upper 50s. US & World Videos 3:11 The weather's great, but the wheels come off the forecast by the weekend 3:14 Weather forecast: Highs near 70 degrees 0:35 Boston will have plenty of sun, warm air Thursday 2:44 Weather forecast: It'll feel like summer in our region 2:29 Weather forecast: Partly cloudy with highs in 60s