Current Conditions

South Boston, Massachusetts

54°F12°C

Partly Cloudy

Wind

NE 12 mph19 km/h

Humidity

80%

Cloud Cover

86%

As of Wednesday, September 23, 2026 at 4:14 AM EDT

Today's Outlook

Day

Partly cloudy and mild, with a high of 62°F17°C and morning low of 57°F14°C. Windy from the NE at 15 to 16 mph24 to 26 km/h. Dry air.

Night

Partly cloudy, with a low around 53°F12°C. Breezy from the NE at 11 to 12 mph17 to 19 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Partly Cloudy	High 62°F17°C	Low 53°F12°C	Precip 0 in0 mm—	Cloud 46%	Wind NE 13 mph20 km/h	Wednesday: Partly cloudy and mild, with a high of 62°F17°C and morning low of 57°F14°C. Windy from the NE at 15 to 16 mph24 to 26 km/h. Dry air. Wednesday Night: Partly cloudy, with a low around 53°F12°C. Breezy from the NE at 11 to 12 mph17 to 19 km/h.
Partly Cloudy	High 62°F17°C	Low 52°F11°C	Precip 0 in0 mm—	Cloud 52%	Wind NE 12 mph19 km/h	Thursday: Mostly cloudy and mild, with a high of 62°F17°C and morning low of 54°F12°C. Breezy from the NE at 13 to 14 mph21 to 23 km/h. Dry air. Thursday Night: Mostly cloudy, with a low around 52°F11°C. Breezy from the NE at 10 to 11 mph17 to 18 km/h.
Light Rain	High 63°F17°C	Low 53°F12°C	Precip 0.16 in4.1 mm53%	Cloud 92%	Wind NNE 15 mph24 km/h	Friday: Overcast and mild, with a high of 63°F17°C and morning low of 56°F13°C. Windy from the NNE at 15 to 17 mph25 to 27 km/h. 31% chance of light rain throughout the day. Dry air. Friday Night: Overcast, with a low around 53°F12°C. Breezy from the NNE at 14 to 16 mph22 to 25 km/h. 53% chance of light rain in the evening.
Rain	High 59°F15°C	Low 58°F14°C	Precip 1.06 in26.9 mm92%	Cloud 96%	Wind NNE 19 mph30 km/h	Saturday: Overcast and mild, with a high of 59°F15°C. Windy from the NNE at 19 to 20 mph30 to 32 km/h. 88% chance of rain throughout the day. Saturday Night: Overcast, with a low around 58°F14°C. Windy from the NNE at 18 to 20 mph29 to 32 km/h. 92% chance of rain throughout the night.
Rain	High 61°F16°C	Low 59°F15°C	Precip 1.3 in33 mm97%	Cloud 99%	Wind NE 16 mph26 km/h	Sunday: Overcast and mild, with a high of 61°F16°C. Windy from the NE at 17 to 18 mph27 to 29 km/h. 96% chance of rain throughout the day. Sunday Night: Overcast, with a low around 59°F15°C. Windy from the NE at 16 to 19 mph26 to 31 km/h. 97% chance of rain throughout the night.
Light Rain	High 62°F17°C	Low 59°F15°C	Precip 0.41 in10.3 mm81%	Cloud 95%	Wind NNE 10 mph15 km/h	Monday: Overcast and mild, with a high of 62°F17°C. Breezy from the NNE at 10 mph16 km/h. 66% chance of light rain throughout the day. Monday Night: Overcast, with a low around 59°F15°C. Breezy from the NNE at 9 to 11 mph15 to 18 km/h. 81% chance of light rain throughout the night.
Drizzle	High 66°F19°C	Low 58°F14°C	Precip 0.05 in1.2 mm22%	Cloud 79%	Wind NW 6 mph10 km/h	Tuesday: Overcast and mild, with a high of 66°F19°C and morning low of 59°F15°C. Light wind from the NW around 6 mph9 km/h. 13% chance of drizzle throughout the day. Tuesday Night: Mostly cloudy, with a low around 58°F14°C. Breezy from the NW at 6 to 7 mph10 to 12 km/h. 22% chance of drizzle overnight.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 23	62°F17°C	53°F12°C	0 in0 mm· —	46%	Partly Cloudy	NE 13 mph20 km/h
DayPartly cloudy and mild, with a high of 62°F17°C and morning low of 57°F14°C. Windy from the NE at 15 to 16 mph24 to 26 km/h. Dry air. NightPartly cloudy, with a low around 53°F12°C. Breezy from the NE at 11 to 12 mph17 to 19 km/h.
	ThursdaySep 24	62°F17°C	52°F11°C	0 in0 mm· —	52%	Partly Cloudy	NE 12 mph19 km/h
DayMostly cloudy and mild, with a high of 62°F17°C and morning low of 54°F12°C. Breezy from the NE at 13 to 14 mph21 to 23 km/h. Dry air. NightMostly cloudy, with a low around 52°F11°C. Breezy from the NE at 10 to 11 mph17 to 18 km/h.
	FridaySep 25	63°F17°C	53°F12°C	0.16 in4.1 mm· 53%	92%	Light Rain	NNE 15 mph24 km/h
DayOvercast and mild, with a high of 63°F17°C and morning low of 56°F13°C. Windy from the NNE at 15 to 17 mph25 to 27 km/h. 31% chance of light rain throughout the day. Dry air. NightOvercast, with a low around 53°F12°C. Breezy from the NNE at 14 to 16 mph22 to 25 km/h. 53% chance of light rain in the evening.
	SaturdaySep 26	59°F15°C	58°F14°C	1.06 in26.9 mm· 92%	96%	Rain	NNE 19 mph30 km/h
DayOvercast and mild, with a high of 59°F15°C. Windy from the NNE at 19 to 20 mph30 to 32 km/h. 88% chance of rain throughout the day. NightOvercast, with a low around 58°F14°C. Windy from the NNE at 18 to 20 mph29 to 32 km/h. 92% chance of rain throughout the night.
	SundaySep 27	61°F16°C	59°F15°C	1.3 in33 mm· 97%	99%	Rain	NE 16 mph26 km/h
DayOvercast and mild, with a high of 61°F16°C. Windy from the NE at 17 to 18 mph27 to 29 km/h. 96% chance of rain throughout the day. NightOvercast, with a low around 59°F15°C. Windy from the NE at 16 to 19 mph26 to 31 km/h. 97% chance of rain throughout the night.
	MondaySep 28	62°F17°C	59°F15°C	0.41 in10.3 mm· 81%	95%	Light Rain	NNE 10 mph15 km/h
DayOvercast and mild, with a high of 62°F17°C. Breezy from the NNE at 10 mph16 km/h. 66% chance of light rain throughout the day. NightOvercast, with a low around 59°F15°C. Breezy from the NNE at 9 to 11 mph15 to 18 km/h. 81% chance of light rain throughout the night.
	TuesdaySep 29	66°F19°C	58°F14°C	0.05 in1.2 mm· 22%	79%	Drizzle	NW 6 mph10 km/h
DayOvercast and mild, with a high of 66°F19°C and morning low of 59°F15°C. Light wind from the NW around 6 mph9 km/h. 13% chance of drizzle throughout the day. NightMostly cloudy, with a low around 58°F14°C. Breezy from the NW at 6 to 7 mph10 to 12 km/h. 22% chance of drizzle overnight.
	WednesdaySep 30	69°F21°C	58°F14°C	0.01 in0.3 mm· 4%	65%	Partly Cloudy	SSW 5 mph8 km/h
DayMostly cloudy and warm, with a high of 69°F21°C and morning low of 59°F15°C. Light wind from the S around 5 mph7 km/h. NightMostly cloudy, with a low around 58°F14°C. Light wind from the SW around 6 mph9 km/h.
	ThursdayOct 1	70°F21°C	59°F15°C	0.09 in2.2 mm· 21%	71%	Drizzle	SSW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 70°F21°C and morning low of 60°F16°C. Breezy from the S at 7 to 8 mph11 to 13 km/h. 21% chance of drizzle throughout the day. NightMostly cloudy, with a low around 59°F15°C. Breezy from the SSW at 7 to 8 mph11 to 13 km/h. 16% chance of drizzle throughout the night.
	FridayOct 2	68°F20°C	59°F15°C	0.2 in5 mm· 21%	65%	Showers	SW 8 mph13 km/h
DayMostly cloudy and warm, with a high of 68°F20°C and morning low of 60°F16°C. Breezy from the SW at 8 to 9 mph13 to 14 km/h. 21% chance of showers throughout the day. NightMostly cloudy, with a low around 59°F15°C. Breezy from the SW at 8 mph13 km/h. 20% chance of showers throughout the night.
	SaturdayOct 3	67°F19°C	57°F14°C	0.17 in4.3 mm· 19%	60%	Showers	WSW 8 mph13 km/h
DayMostly cloudy and mild, with a high of 67°F19°C and morning low of 58°F14°C. Breezy from the W at 8 to 9 mph13 to 14 km/h. 19% chance of showers throughout the day. NightMostly cloudy, with a low around 57°F14°C. Breezy from the WSW at 8 mph13 km/h. 19% chance of showers throughout the night.
	SundayOct 4	67°F19°C	57°F14°C	0.17 in4.4 mm· 21%	64%	Showers	SSW 8 mph13 km/h
DayMostly cloudy and mild, with a high of 67°F19°C and morning low of 58°F14°C. Breezy from the SSW at 8 to 9 mph13 to 14 km/h. 21% chance of showers throughout the day. NightMostly cloudy, with a low around 57°F14°C. Breezy from the SW at 8 mph13 km/h. 20% chance of showers throughout the night.
	MondayOct 5	66°F19°C	57°F14°C	0.15 in3.9 mm· 18%	61%	Showers	WSW 8 mph13 km/h
DayMostly cloudy and mild, with a high of 66°F19°C and morning low of 57°F14°C. Breezy from the WSW at 8 to 9 mph14 to 14 km/h. 18% chance of drizzle throughout the day. NightMostly cloudy, with a low around 57°F14°C. Breezy from the WSW at 8 to 9 mph13 to 14 km/h. 18% chance of showers throughout the night.
	TuesdayOct 6	65°F18°C	55°F13°C	0.18 in4.5 mm· 21%	56%	Showers	W 8 mph14 km/h
DayMostly cloudy and mild, with a high of 65°F18°C and morning low of 56°F13°C. Breezy from the W at 8 to 9 mph14 to 15 km/h. 16% chance of showers throughout the day. Dry air. NightMostly cloudy, with a low around 55°F13°C. Breezy from the W at 8 to 9 mph14 to 14 km/h. 21% chance of showers throughout the night.
	WednesdayOct 7	63°F17°C	53°F12°C	0.12 in3 mm· 17%	49%	Drizzle	WNW 8 mph14 km/h
DayMostly cloudy and mild, with a high of 63°F17°C and morning low of 53°F12°C. Breezy from the WNW at 8 to 9 mph14 to 14 km/h. 17% chance of drizzle throughout the day. Dry air. NightPartly cloudy, with a low around 53°F12°C. Breezy from the WNW at 8 mph13 km/h. 17% chance of drizzle throughout the night.

Nearby Cities

Boston2 mi3 km Roxbury Crossing2 mi3 km Back Bay2 mi4 km Fenway/Kenmore3 mi4 km Dorchester3 mi5 km East Boston3 mi5 km

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

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Coordinates: 42.3334°N, 71.0495°W·Elevation: 14m·Timezone: America/New_York·Population: 571,281