Local weather forecast

Weather in South Dartmouth, MA

Updated 2026-09-26 10:00 local time · ZIP codes 02748

Light rain shower
Now55°F

Light rain shower

High / Low59° / 53°
Rain chance92%
Wind21 mph
Weather alerts

Active alerts

1
Coastal Flood Advisory issued September 26 at 2:00AM EDT until September 27 at 8:00PM EDT by NWS Boston/Norton MA

* WHAT...Up to one foot of inundation above ground level in low- lying areas near shorelines and tidal waterways (5.6 to 7.2 feet Mean Lower Low Water). * WHERE...Washington, Southern Bristol MA, Southern Plymouth MA, Southeast Providence RI, Eastern Kent RI, Bristol RI, and Newport RI Counties. * WHEN...Until 8 PM EDT Sunday. * IMPACTS...Splashover and Minor coastal flooding is expected in the lowest lying areas along the south coast of Rhode Island and Massachusetts over multiple high tide cycles late today through this weekend. A few immediate coastal roads may briefly flood due to wave action. In addition...minor beach erosion is also possible.

Safety instructions

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.

Hourly

Next hours

NowLight rain shower55°47% rain
11 AMLight rain shower55°48% rain
12 PMPatchy rain nearby56°38% rain
1 PMPatchy rain nearby56°37% rain
2 PMPatchy rain nearby56°45% rain
3 PMLight rain shower56°51% rain
4 PMLight rain shower57°68% rain
5 PMLight rain shower57°67% rain
6 PMLight rain shower57°83% rain
7 PMLight rain shower57°85% rain
8 PMLight rain shower58°79% rain
9 PMLight rain shower59°85% rain
Forecast

3-day weather forecast

Today2026-09-26
Light rain shower
59° 53°Light rain shower
Rain 92%Gust 22 mph
Tomorrow2026-09-27
Light rain shower
67° 59°Light rain shower
Rain 93%Gust 22 mph
Monday2026-09-28
Light rain shower
66° 61°Light rain shower
Rain 94%Gust 9 mph
Conditions

Weather details

Feels like46°F
Humidity94%
Pressure29.87 inHg
Visibility6 mi
Wind21 mph NE
Wind gusts44 mph
Precipitation0.01 in
UV index0
Daylight

Sunrise, sunset and moon

Sunrise06:35 AM
Sunset06:34 PM
Moonrise06:22 PM
Moon phaseFull Moon
Next 24 hours

Key weather changes ahead

Warmest hour9 AM · 65°F
Coolest hour10 AM · 55°F
Highest rain chance11 PM · 92%
Strongest gusts10 AM · 44 mph
Practical guide

Weather insights for today

Take an umbrella

Rain chance reaches about 85% over the next 12 hours.

A jacket or sweater is a good idea

It feels like 46°F with winds near 21 mph.

Best window: 1 PM

56°F, 37% rain chance and 19 mph wind.

Use extra caution while driving

Visibility is around 6 mi; gusts may reach 44 mph.

Running conditions are less comfortable

Current temperature is 55°F, wind 21 mph, rain chance up to 85%.

Low UV protection needs

UV index is 0.

Local weather characteristics in South Dartmouth

Massachusetts has four seasons with humid summers and cold winters. Coastal areas can be moderated by the Atlantic but are also exposed to nor'easters and strong coastal winds.

South Dartmouth is part of the Northeast weather region. The forecast point is near 41.60°N latitude and 70.95°W longitude. Local temperature, wind and precipitation can still differ from nearby places, especially where terrain, coastlines or urban development create small-scale weather changes.

South Dartmouth weather today

Light rain shower and 55°F in South Dartmouth, MA. Today's high is 59°F with a 92% rain chance. Winds are around 21 mph with gusts near 44 mph. Relative humidity is 94%, pressure is 29.87 inHg, and visibility is about 6 miles.

Tonight and tomorrow in South Dartmouth

Sunrise is at 06:35 AM and sunset is at 06:34 PM. Tomorrow's forecast calls for Light rain shower with a high near 67°F and a low near 59°F. The maximum rain chance is 93%.

Nearby

Weather near South Dartmouth

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