Zone Forecast Product for Southern New England National Weather Service Boston/Norton MA 704 PM EDT Wed Sep 16 2026 Southeast Middlesex MA- Including the city of Cambridge 704 PM EDT Wed Sep 16 2026 .TONIGHT...Mostly clear this evening, then becoming mostly cloudy. Lows in the lower 60s. Southwest winds around 5 mph. .THURSDAY...Partly sunny in the morning, then mostly cloudy with a slight chance of showers in the afternoon. Humid with highs around 80. Southeast winds around 5 mph. Chance of rain 20 percent. .THURSDAY NIGHT...Mostly cloudy with a 50 percent chance of showers. Humid with lows in the mid 60s. South winds 5 to 10 mph, becoming west after midnight. .FRIDAY...Sunny. Highs in the upper 70s. Northwest winds 5 to 10 mph with gusts up to 20 mph. .FRIDAY NIGHT...Mostly clear. Cooler. Less humid with lows in the lower 50s. North winds 5 to 10 mph. .SATURDAY...Mostly sunny. Cooler with highs in the mid 60s. .SATURDAY NIGHT...Mostly cloudy. Lows in the lower 50s. .SUNDAY...Showers likely. Highs in the mid 60s. Chance of rain 70 percent. .SUNDAY NIGHT...Showers likely. Lows in the lower 50s. Chance of rain 60 percent. .MONDAY...Mostly sunny. Highs in the mid 60s. .MONDAY NIGHT AND TUESDAY...Mostly cloudy. A 40 percent chance of showers. Lows in the lower 50s. Highs in the mid 60s. .TUESDAY NIGHT...Partly cloudy. Lows in the lower 50s. .WEDNESDAY...Partly sunny. Highs in the mid 60s.