Boston, Massachusetts – After a stretch of pleasant summer weather, Massachusetts residents can expect one more dry and comfortable weekend before showers and thunderstorms return early next week. While Saturday and Sunday will feature abundant sunshine and seasonable temperatures, forecasters are watching the potential for heavy rainfall and localized flash flooding by Tuesday into Wednesday.
According to the National Weather Service in Boston/Norton, Saturday will be mostly sunny with afternoon highs ranging from 77 to 85 degrees and overnight lows between 52 and 62 degrees. Sunday will remain mostly sunny with highs of 75 to 85 degrees, although low clouds may develop across Cape Cod and the Islands.
The weather pattern begins to change Monday as a mix of sun and clouds gives way to scattered afternoon showers and thunderstorms, with highs once again reaching 77 to 85 degrees. By Tuesday, skies become mostly cloudy with additional afternoon showers and thunderstorms possible. High temperatures will range from 77 to 82 degrees, with overnight lows between 59 and 65 degrees.
Forecasters are continuing to monitor the potential for heavy downpours and localized flash flooding Tuesday into Wednesday, although confidence in the exact placement and timing of the heaviest rain remains limited. Residents across Boston, Worcester, Providence, Springfield, Lowell, Brockton, New Bedford, and Cape Cod should stay informed as forecast details become clearer.
Anyone with travel or outdoor plans early next week should monitor updated forecasts and be prepared for changing weather conditions. Additional flood watches or weather advisories may be issued if confidence increases in the heavy rainfall threat.
Five-Day Forecast for Boston, Massachusetts
- Saturday: Mostly sunny. High 77–85°, low 52–62°.
- Sunday: Mostly sunny. High 75–85°, low 54–62°. Low clouds possible across Cape Cod and the Islands.
- Monday: Sun and clouds. High 77–85°, low 59–65°. Afternoon showers and thunderstorms possible.
- Tuesday: Mostly cloudy. High 77–82°. Afternoon showers and thunderstorms possible.
- Wednesday: Periodic showers and thunderstorms possible with a continued risk of heavy downpours and localized flash flooding.
