Cities / United States / Massachusetts

21°

☀️ South Boston weather

Clear sky. .

Feels like 21° Wind 11 km/h SW Humidity 75% Pressure 1014 hPa UV 6 Air Fair ☀ 06:01 - 19:31

Right now it is 21° in South Boston with clear skies and today's high is 24° with an overnight low of 19°. The sun rises at 06:01 and sets at 19:31, giving 13h 30m of daylight. Over the coming week highs range from 23° to 29°.

South Boston is in Massachusetts, United States, sitting 14 m above sea level, with a population of about 571,000. Local time is America/New_York (UTC−4), and every time on this page is shown in it.

Next 24 hours - temperature

17° 21° 25° 24° 18° 09:00 · 20.4° · 0 mm 10:00 · 21.2° · 0 mm 11:00 · 22.4° · 0 mm 12:00 · 23.5° · 0 mm 13:00 · 24.2° · 0 mm 14:00 · 24.4° · 0 mm 15:00 · 24.4° · 0 mm 16:00 · 24.2° · 0 mm 17:00 · 23.8° · 0 mm 18:00 · 23.6° · 0 mm 19:00 · 22.8° · 0 mm 20:00 · 21.7° · 0 mm 21:00 · 20.9° · 0 mm 22:00 · 20.3° · 0 mm 23:00 · 20° · 0 mm 00:00 · 19.8° · 0 mm 01:00 · 19.6° · 0 mm 02:00 · 19.7° · 0 mm 03:00 · 19° · 0 mm 04:00 · 18.5° · 0 mm 05:00 · 18.1° · 0 mm 06:00 · 17.8° · 0 mm 07:00 · 17.7° · 0 mm 08:00 · 19.3° · 0 mm

Precipitation

09:00 · 0 mm 09:00 10:00 · 0 mm 11:00 · 0 mm 12:00 · 0 mm 12:00 13:00 · 0 mm 14:00 · 0 mm 15:00 · 0 mm 15:00 16:00 · 0 mm 17:00 · 0 mm 18:00 · 0 mm 18:00 19:00 · 0 mm 20:00 · 0 mm 21:00 · 0 mm 21:00 22:00 · 0 mm 23:00 · 0 mm 00:00 · 0 mm 00:00 01:00 · 0 mm 02:00 · 0 mm 03:00 · 0 mm 03:00 04:00 · 0 mm 05:00 · 0 mm 06:00 · 0 mm 06:00 07:00 · 0 mm 08:00 · 0 mm

Hour by hour

TIMETEMPFEELSRAINCONDITIONS
09:00 ☀️ 20.4° 20.6° - Clear sky
10:00 ☀️ 21.2° 20.6° - Clear sky
11:00 ☀️ 22.4° 20° - Clear sky
12:00 ☀️ 23.5° 19.7° - Clear sky
13:00 ☀️ 24.2° 19.9° - Clear sky
14:00 ☀️ 24.4° 20° - Clear sky
15:00 ☁️ 24.4° 20° - Overcast
16:00 ☁️ 24.2° 19.9° - Overcast
17:00 ☀️ 23.8° 19.7° - Clear sky
18:00 ☀️ 23.6° 19.9° - Clear sky
19:00 ☀️ 22.8° 19.6° - Clear sky
20:00 ☀️ 21.7° 19.6° - Clear sky

Next 16 days

Today☀️ 24°19° Tue 25☀️ 23°18° Wed 26☀️ 27°17° Thu 27☁️ 29°19° Fri 28🌧️ 24°20°21.2mm Sat 29🌦️ 23°18°1.2mm Sun 30🌦️ 25°19°5.1mm Mon 31🌧️ 24°19°16.2mm Tue 1☁️ 22°14° Wed 2☁️ 18°15° Thu 3☁️ 19°16°0.6mm Fri 4☁️ 18°17°0.3mm Sat 5☁️ 18°17°0.3mm Sun 6☀️ 19°15° Mon 7☀️ 21°13° Tue 8☀️ 31°18°
☀️ TodayAugust 24th Avg 21° Low 19° at 07:00 High 24° at 14:00 Feels 22° Wind ~20 km/h
Clear Clear Clear
00:00 20°
02:00 20°
04:00 20°
06:00 20°
08:00 20°
10:00 21°
12:00 24°
14:00 24°
16:00 24°
18:00 24°
20:00 22°
22:00 20°
☀️ TuesdayAugust 25th Avg 20° Low 18° at 07:00 High 23° at 15:00 Feels 20° Wind ~20 km/h
Clear Clear
00:00 20°
02:00 20°
04:00 19°
06:00 18°
08:00 19°
10:00 21°
12:00 22°
14:00 22°
16:00 22°
18:00 22°
20:00 21°
22:00 20°
☀️ WednesdayAugust 26th Avg 22° Low 17° at 06:00 High 27° at 15:00 Wind ~14 km/h
Clear Clear Cloudy
00:00 20°
02:00 19°
04:00 17°
06:00 17°
08:00 19°
10:00 23°
12:00 25°
14:00 27°
16:00 27°
18:00 25°
20:00 23°
22:00 24°
☁️ ThursdayAugust 27th Avg 24° Low 19° at 06:00 High 29° at 14:00 Feels 27° Wind ~26 km/h
Cloudy Cloudy Partly Cloudy Cloudy
00:00 21°
02:00 21°
04:00 20°
06:00 19°
08:00 22°
10:00 25°
12:00 28°
14:00 29°
16:00 28°
18:00 26°
20:00 23°
22:00 22°
🌧️ FridayAugust 28th Avg 22° Low 20° at 06:00 High 24° at 12:00 21.2 mm rain Feels 26° Wind ~14 km/h
Cloudy Rain
00:00 21°
02:00 21° 0.2mm
04:00 21°
06:00 20° 1.6mm
08:00 21° 0.8mm
10:00 23° 0.3mm
12:00 24° 0.8mm
14:00 24° 0.2mm
16:00 23° 2.1mm
18:00 21° 2.3mm
20:00 20° 2.4mm
22:00 21°
🌦️ SaturdayAugust 29th Avg 20° Low 18° at 05:00 High 23° at 14:00 1.2 mm rain Feels 21° Wind ~21 km/h
Clear Cloudy Rain
00:00 20°
02:00 19°
04:00 18°
06:00 18°
08:00 19°
10:00 21°
12:00 22°
14:00 23°
16:00 22°
18:00 22°
20:00 22°
22:00 20° 0.4mm
🌦️ SundayAugust 30th Avg 21° Low 19° at 00:00 High 25° at 14:00 5.1 mm rain Wind ~12 km/h
Cloudy Rain Cloudy Rain Cloudy
00:00 19°
02:00 19°
04:00 19° 0.2mm
06:00 19° 0.2mm
08:00 20° 0.2mm
10:00 22°
12:00 24° 0.4mm
14:00 25° 0.4mm
16:00 23° 0.9mm
18:00 21°
20:00 21°
22:00 20°
🌧️ MondayAugust 31st Avg 21° Low 19° at 09:00 High 24° at 17:00 16.2 mm rain Wind ~18 km/h
Cloudy Rain Cloudy Partly Cloudy
00:00 20°
02:00 20°
04:00 20°
06:00 20° 0.5mm
08:00 19° 0.5mm
10:00 19° 3.6mm
12:00 20° 1.3mm
14:00 21° 1.3mm
16:00 24°
18:00 24°
20:00 22°
22:00 20°
☁️ TuesdaySeptember 1st Avg 18° Low 14° at 06:00 High 22° at 14:00 Wind ~16 km/h
Clear Cloudy Partly Cloudy Cloudy
00:00 18°
02:00 16°
04:00 15°
06:00 14°
08:00 15°
10:00 18°
12:00 20°
14:00 22°
16:00 22°
18:00 21°
20:00 20°
22:00 18°
☁️ WednesdaySeptember 2nd Avg 16° Low 15° at 02:00 High 18° at 11:00 Feels 14° Wind ~22 km/h
Cloudy Partly Cloudy Cloudy Partly Cloudy
00:00 16°
02:00 15°
04:00 15°
06:00 16°
08:00 16°
10:00 17°
12:00 18°
14:00 17°
16:00 17°
18:00 17°
20:00 16°
22:00 17°
☁️ ThursdaySeptember 3rd Avg 17° Low 16° at 07:00 High 19° at 14:00 0.6 mm rain Feels 14° Wind ~29 km/h
Cloudy Rain Cloudy
00:00 17°
02:00 17°
04:00 16°
06:00 16°
08:00 16°
10:00 17°
12:00 17°
14:00 19°
16:00 18° 0.1mm
18:00 17° 0.1mm
20:00 17° 0.1mm
22:00 17°
☁️ FridaySeptember 4th Avg 17° Low 17° at 05:00 High 18° at 23:00 0.3 mm rain Feels 14° Wind ~30 km/h
Cloudy Rain Cloudy
00:00 17°
02:00 17°
04:00 17°
06:00 17°
08:00 17°
10:00 17° 0.1mm
12:00 17°
14:00 17°
16:00 17°
18:00 17°
20:00 17°
22:00 17°
☁️ SaturdaySeptember 5th Avg 17° Low 17° at 06:00 High 18° at 14:00 0.3 mm rain Feels 14° Wind ~29 km/h
Cloudy Rain Cloudy Partly Cloudy Clear
00:00 17°
02:00 17°
04:00 17°
06:00 17°
08:00 17°
10:00 17° 0.1mm
12:00 18°
14:00 18°
16:00 18°
18:00 18°
20:00 17°
22:00 17°
☀️ SundaySeptember 6th Avg 17° Low 15° at 04:00 High 19° at 12:00 Feels 16° Wind ~23 km/h
Clear
00:00 16°
02:00 15°
04:00 15°
06:00 15°
08:00 17°
10:00 18°
12:00 19°
14:00 19°
16:00 19°
18:00 18°
20:00 17°
22:00 17°
☀️ MondaySeptember 7th Avg 18° Low 13° at 05:00 High 21° at 15:00 Feels 19° Wind ~15 km/h
Clear
00:00 16°
02:00 15°
04:00 14°
06:00 14°
08:00 15°
10:00 17°
12:00 19°
14:00 21°
16:00 21°
18:00 20°
20:00 20°
22:00 19°
☀️ TuesdaySeptember 8th Avg 24° Low 18° at 04:00 High 31° at 16:00 Feels 28° Wind ~19 km/h
Clear
00:00 19°
02:00 19°
04:00 18°
06:00 18°
08:00 20°
10:00 24°
12:00 28°
14:00 30°
16:00 31°
18:00 29°
20:00 25°
22:00 23°

Sun

☀️ Sunrise 06:01 · Sunset 19:31

13h 30m of daylight · America/New_York

Air quality

PM2.5 17.1 µg/m³ - Fair

Fine for almost everyone; unusually sensitive people may notice it on a long run.

Source: Copernicus CAMS, updated hourly.

Nearby

Boston Seaport · 1.6 km City Point · 1.7 km Dorchester North · 1.9 km Uphams Corner · 2.1 km Chinatown/Leather District · 2.1 km South End · 2.1 km

Tools for South Boston

☔ Will it rain today? 🌅 Sunrise & sunset 🫁 Air quality 📼 Weather on this day

Common questions about South Boston weather

Will it rain in South Boston today?

No rain is in the forecast for South Boston today.

What is the temperature in South Boston right now?

It is 21° in South Boston right now. Today runs between a low of 19° and a high of 24°.

What time is sunrise and sunset in South Boston?

The sun rises at 06:01 and sets at 19:31 local time in South Boston today, giving 13h 30m of daylight.

What is the air quality in South Boston?

PM2.5 in South Boston is currently 17.1 µg/m³, which counts as Fair on the European air-quality index. Fine for almost everyone; unusually sensitive people may notice it on a long run.

How accurate is the South Boston forecast, and how far ahead does it go?

This page shows 16 days ahead, refreshed every hour. It blends ECMWF, NOAA GFS and whichever national high-resolution model covers South Boston best. The first three days are the dependable part - day one is usually within a degree or two - and accuracy falls off steadily after day five, so read the far end as a trend rather than a plan. We publish our measured error against real station observations on the accuracy page.

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