🇺🇸 Weather in South Boston
Map Overlays:
Hourly Forecast for South Boston
16:00
17°
10%
17:00
16°
10%
18:00
15°
10%
19:00
14°
10%
20:00
13°
11%
21:00
12°
8%
22:00
12°
13%
23:00
12°
13%
00:00
11°
13%
01:00
11°
13%
02:00
11°
14%
03:00
10°
7%
04:00
10°
18%
05:00
10°
19%
06:00
10°
19%
07:00
10°
20%
08:00
11°
18%
09:00
13°
15%
10:00
14°
14%
11:00
15°
12%
12:00
17°
11%
13:00
18°
10%
14:00
18°
10%
15:00
17°
11%
14-Day Forecast for South Boston
2026-10-10
Overcast
17° /
11°
2026-10-11
Overcast
18° /
10°
2026-10-12
Patchy rain nearby
19° /
12°
2026-10-13
Patchy rain nearby
16° /
12°
2026-10-14
Sunny
23° /
13°
2026-10-15
Sunny
15° /
9°
2026-10-16
Overcast
17° /
8°
Additional Forecasts for South Boston
Air Quality
💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 128.0 μg/m³
O₃ (Ozone) 81.0 μg/m³
NO₂ (Nitrogen Dioxide) 2.5 μg/m³
SO₂ (Sulphur Dioxide) 0.8 μg/m³
PM2.5 (Fine particles) 4.6 μg/m³
PM10 (Coarse particles) 5.0 μg/m³
Historical Weather
Weather Forecasts for Other Cities in United States
Weather in South Boston — FAQ
Answers refreshed each request based on current conditions in South Boston.
What is the weather like right now in South Boston?
Right now in South Boston, United States the temperature is 16.9°C (feels like 13.6°C), with overcast. Relative humidity is 34% and wind is 7.2 km/h.
What is today's high and low temperature in South Boston?
Today's forecast high in South Boston is 17.0°C and the overnight low is 10.9°C. The diurnal range — high minus low — depends on cloud cover; clear days swing more than overcast ones.
Will it rain in South Boston today?
The chance of precipitation in South Boston today is 11%. Forecast accuracy is highest within the next 6 hours and decreases steadily out to 14 days.
How often does the weather here update?
Current observations refresh every 15-60 minutes from the nearest monitoring stations operated by national meteorological agencies. The hourly forecast updates approximately every hour; the 7- and 14-day outlook is recomputed several times per day.
What does 'feels like' temperature mean?
Feels-like (apparent) temperature accounts for humidity, wind chill and direct sunshine — variables that change how the human body perceives heat or cold. On hot, humid days it can be 3-7°C above the actual reading; on cold windy days it can be 5-15°C below.
Why does the temperature in South Boston differ from nearby cities?
Even short distances can change temperatures noticeably. South Boston's reading reflects altitude, proximity to large bodies of water, urban heat island effects, and the exact location of the monitoring stations supplying the data. Coastal cities are typically milder and more humid than inland equivalents.