forecast May 8, 2021 11:30 pm Forecast: Warm, Mostly Sunny Mother's Day Morning Saturday Night: Partly cloudy. Lows in the 40s. Sunday: Sun & clouds, milder. Slight chance PM shower. Highs in the 60s. Monday: Rain, during the morning. Highs around 60s. US & World Videos 4:04 Afternoon clouds over the region on Saturday 3:24 Weather forecast: Highs in the 50s 3:43 Look out for showers this afternoon in Boston 3:41 Cool air to linger over Boston into the weekend 3:17 Cooling back down, weekend turns wet in Boston