South Boston, MA 7-Day Night Weather Forecast
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South Boston, MA Weather Forecast


South Boston, MA Weather Forecast Date: 103 PM EDT Wed Aug 05 2026
The area/counties/county of: Suffolk County Ma, including the city of Boston.or toggle through each period.
This Afternoon... Mostly sunny. Near steady temperature in the mid 80s. South winds 5 to 10 mph.
Tonight... Partly cloudy. Humid with lows around 70. Southwest winds 5 to 10 mph.
Thursday... Sunny, hot with highs in the lower 90s. Southwest winds 5 to 10 mph. Heat index values up to 102.
Thursday Night... Partly cloudy with a chance of showers and thunderstorms. Humid with lows in the lower 70s. Southwest winds 5 to 10 mph. Chance of rain 30%.
Friday... Partly sunny with a 50% chance of showers. Hot with highs in the lower 90s. West winds 5 to 10 mph. Heat index values up to 100.
Friday Night... Partly cloudy with a chance of showers. Lows in the lower 70s. Chance of rain 40%.
Saturday... Partly cloudy. A chance of showers and thunderstorms. Hot. Highs around 90. Lows in the lower 70s. Chance of rain 40%.
Saturday Night... Partly cloudy. A chance of showers and thunderstorms. Hot. Highs around 90. Lows in the lower 70s. Chance of rain 40%.
Sunday... Mostly clear. Hot. Highs around 90. Lows around 70.
Monday... Mostly clear. Hot. Highs around 90. Lows around 70.
Monday Night... Partly cloudy. Lows around 70.
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