Boston August 21, 2019 8:00 pm Weather Forecast: Tornado Warnings End Wednesday night: Mostly cloudy, patchy fog. Lows in the 60s to around 70. Thursday: Mix of sun and clouds, isolated downpour or storm. Highs in the 80s to near 90. Friday: cooler, drier air. Highs in the 70s. US & World Videos 4:23 Forecast: Dangerously cold wind chills 3:33 Forecast: Deep freeze, quiet spell ahead 4:16 Chilly Saturday after snowstorm in New England 3:33 Weather forecast: Snow moves out as cold settles in 4:24 Forecast: How much snow are will Boston get tonight?