South Boston, MA Weather Forecast
Local 7-day forecast
Rain Showers Likely
Track current conditions, temperature changes, wind, and the full daily outlook for South Boston, MA in one place.
Rain showers likely. Cloudy, with a high near 60. Southwest wind 5 to 10 mph. Chance of precipitation is 60%.
Local Weather Overview
This forecast page for South Boston, MA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Apr 16, 2026 2:04 AM EDT.
The active forecast window currently covers Apr 19 to Apr 22, 2026 for South Boston, MA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 19 to Apr 22, 2026
- Latest sync
- Apr 16, 2026 2:04 AM EDT
- Forecast office
- BOX
- Source
- NOAA / NWS
Daily Outlook
This Week in South Boston
Wednesday looks like the warmest upcoming period in South Boston at 63 degrees F.
Monday Night is the coolest period ahead with temperatures near 30 degrees F.
The strongest winds are forecast for Sunday at about 5 to 10 mph SW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 16, 2026 2:04 AM EDT
- Coverage
- 4 days
- Time zone
- America/New_York
- Forecast office
- BOX
- Radar station
- KBOX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Rain showers likely before 5am, then a slight chance of snow showers. Mostly cloudy, with a low around 34. West wind around 9 mph. Chance of precipitation is 60%.
A slight chance of snow showers before 11am, then a slight chance of rain showers. Mostly sunny, with a high near 48. West wind around 10 mph, with gusts as high as 21 mph.
A slight chance of rain showers before 7pm. Partly cloudy, with a low around 30. Northwest wind 5 to 8 mph.
Sunny, with a high near 54. West wind 5 to 9 mph.
A slight chance of rain showers after 2am. Partly cloudy, with a low around 40. Southwest wind around 8 mph.
A slight chance of rain showers. Partly sunny, with a high near 63. Southwest wind 6 to 9 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
Apr 19
|
Rain Showers Likely
|
60°F |
5 to 10 mph
SW
|
|
Sunday Night
Apr 19
|
Rain Showers Likely then Slight Chance Snow Showers
|
34°F |
9 mph
W
|
|
Monday
Apr 20
|
Slight Chance Snow Showers then Slight Chance Rain Showers
|
48°F |
10 mph
W
|
|
Monday Night
Apr 20
|
Slight Chance Rain Showers then Partly Cloudy
|
30°F |
5 to 8 mph
NW
|
|
Tuesday
Apr 21
|
Sunny
|
54°F |
5 to 9 mph
W
|
|
Tuesday Night
Apr 21
|
Partly Cloudy then Slight Chance Rain Showers
|
40°F |
8 mph
SW
|
|
Wednesday
Apr 22
|
Slight Chance Rain Showers
|
63°F |
6 to 9 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around South Boston.
