Nearby Harbors
41.1287’ N, 73.2893’ W

Southport, CT

70°
H -°
L 67°
SSE
4mph
Low tide
7:22 am
Photo Credits

Southport, CT Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Sat
Sep 12 		Thunderstorms -º / 67º 79% SE 4 mph 90%
Sun
Sep 13 		AM Thunderstorms
View Hourly 		76º / 64º 100% NNW 7 mph 93%
3am Mostly Cloudy 70º 15% SSE 4 mph 85%
4am Cloudy 70º 18% SE 4 mph 87%
5am Showers 70º 46% SE 4 mph 89%
6am Thunderstorms 70º 81% ESE 4 mph 92%
7am Thunderstorms 70º 100% ESE 5 mph 95%
8am Thunderstorms 70º 100% ESE 5 mph 96%
9am Thunderstorms 71º 100% E 7 mph 96%
10am Thunderstorms 70º 96% ENE 6 mph 100%
11am Thunderstorms 70º 69% NE 7 mph 100%
12pm Showers 71º 42% NNE 6 mph 98%
1pm Cloudy 72º 23% NW 6 mph 95%
2pm Cloudy 73º 15% NW 6 mph 93%
3pm Mostly Cloudy 74º 15% W 6 mph 89%
4pm Partly Cloudy 76º 15% WSW 6 mph 84%
5pm Partly Cloudy 75º 15% WSW 6 mph 84%
6pm Partly Cloudy 75º 15% SW 5 mph 84%
7pm Partly Cloudy 74º 6% SSW 4 mph 87%
8pm Partly Cloudy 72º 7% SW 3 mph 92%
9pm Partly Cloudy 72º 7% SW 3 mph 94%
10pm Partly Cloudy 71º 8% SW 3 mph 95%
11pm Mostly Clear 71º 8% WSW 3 mph 97%
Mon
Sep 14 		Partly Cloudy
View Hourly 		73º / 52º 24% NNW 14 mph 55%
12am Mostly Clear 70º 8% WSW 3 mph 98%
1am Partly Cloudy 70º 8% WSW 3 mph 98%
2am Mostly Cloudy 70º 15% W 5 mph 96%
3am Mostly Cloudy 70º 15% WNW 6 mph 92%
4am Cloudy 69º 15% NNW 8 mph 87%
5am Cloudy 68º 18% NNW 9 mph 83%
6am Showers 66º 38% NNW 9 mph 82%
7am Mostly Cloudy 65º 24% NNW 9 mph 81%
8am Mostly Cloudy 66º 15% NNW 10 mph 76%
9am Mostly Sunny 67º 3% NNW 11 mph 70%
10am Sunny 68º 2% NNW 12 mph 65%
11am Sunny 69º 0% NNW 13 mph 58%
12pm Sunny 71º 0% NNW 14 mph 51%
1pm Sunny 72º 0% NNW 14 mph 46%
2pm Sunny 72º 0% NNW 14 mph 43%
3pm Sunny 72º 0% NNW 14 mph 41%
4pm Sunny 72º 0% NNW 13 mph 41%
5pm Sunny 71º 0% NNW 13 mph 41%
6pm Sunny 70º 0% NNW 12 mph 44%
7pm Sunny 67º 0% NNW 11 mph 47%
8pm Clear 65º 0% N 9 mph 52%
9pm Clear 63º 0% N 9 mph 57%
10pm Clear 61º 1% N 9 mph 60%
11pm Clear 60º 1% N 8 mph 62%
Tue
Sep 15 		Mostly Sunny
View Hourly 		71º / 58º 3% E 8 mph 61%
12am Clear 59º 1% N 7 mph 64%
1am Clear 57º 2% N 7 mph 68%
2am Clear 56º 2% NNE 7 mph 70%
Wed
Sep 16 		Partly Cloudy 78º / 64º 5% SW 8 mph 69%
Thu
Sep 17 		Mostly Cloudy 79º / 65º 19% SSW 8 mph 76%
Fri
Sep 18 		AM Showers 77º / 58º 36% NNE 9 mph 72%
Sat
Sep 19 		Partly Cloudy 74º / 61º 24% E 9 mph 64%

Weather Radar for Southport, CT See Radar

See Radar Map

* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for Southport, CT

Overnight
Low : 65ºF
A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 5am. Some of the storms could produce heavy rainfall. Low around 65. Light southeast wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
High : 78ºF
Showers and possibly a thunderstorm, mainly before 2pm. Some of the storms could produce heavy rainfall. High near 78. Southeast wind around 7 mph becoming northwest in the afternoon. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Sunday Night
Low : 63ºF
A 30 percent chance of showers, mainly after 5am. Partly cloudy, with a low around 63. Light and variable wind becoming northwest around 6 mph after midnight.
Monday
High : 73ºF
A 30 percent chance of showers before 8am. Partly sunny, then gradually becoming sunny, with a high near 73. North wind 9 to 13 mph.
Monday Night
Low : 53ºF
Clear, with a low around 53. North wind 7 to 9 mph.
Tuesday
High : 71ºF
Sunny, with a high near 71.
Tuesday Night
Low : 56ºF
Partly cloudy, with a low around 56.
Wednesday
High : 77ºF
Sunny, with a high near 77.
Wednesday Night
Low : 62ºF
Partly cloudy, with a low around 62.
Thursday
High : 78ºF
Mostly sunny, with a high near 78.
Thursday Night
Low : 63ºF
Mostly cloudy, with a low around 63.
Friday
High : 78ºF
A 30 percent chance of showers. Partly sunny, with a high near 78.
Friday Night
Low : 60ºF
A 30 percent chance of showers. Mostly cloudy, with a low around 60.
Saturday
High : 75ºF
A 40 percent chance of showers. Partly sunny, with a high near 75.

NOAA Buoy Data Near Southport, CT See Map

Loading Map...
Loading Buoy Data...

    Wind Speed Forecast for Southport, CT

    SundayMondayTuesday
    Wind Speed (MPH) 457643691314118
    7am11am3pm7pm11pm3am7am11am3pm7pm11pm3am
    MPH 457643691314118
    DIR SSEESENEWSSWWSWWNWNNWNNWNNWNNWN

    Current Weather Conditions In Southport, CT

    As Of: 12 minutes ago

    • 70ºF
    • 70ºF
    • 4mph
    • 0º (SSE)
    • 4mph
    • Mostly Cloudy
    • 10mi
    • 30.01"
    • 85%
    • 0ºF

    The weather right now in Southport, CT is Mostly Cloudy. The current temperature is 70°F, and the expected high and low for today, Sunday, September 13, 2026, are -° high temperature and 67°F low temperature. The wind is currently blowing at 4 miles per hour, and coming from the South Southeast. The wind is gusting to 4 mph. With the wind and the atmosphere the temperature feels like 70° Fahrenheit. Expected precipitation is 15 percent, with current humidity at 85 percent, and air pressure at 30.01 in. Visibility is 10 nautical miles. There are 2 current weather alert(s).

    Weather Alerts
    Flood Watch - 2:07am Sun Sep 13 2026

    ...FLOOD WATCH REMAINS IN EFFECT FROM 6 AM THIS MORNING TO 2 PM EDT THIS AFTERNOON...

    WHAT: Flash flooding caused by excessive rainfall is possible.

    WHERE: Portions of southern Connecticut, including the following
    areas, Northern Middlesex, Northern New London, Southern Fairfield,
    Southern Middlesex, Southern New Haven and Southern New London and
    southeast New York, including the following areas, Northeast
    Suffolk, Northern Nassau, Northwest Suffolk, Southeast Suffolk,
    Southern Nassau and Southwest Suffolk.

    WHEN: From 6 AM this morning to 2 PM EDT this afternoon.

    IMPACTS: Excessive runoff may result in flooding in poor drainage
    areas, rivers, creeks, streams, and other low-lying and flood-prone
    locations.

    ADDITIONAL DETAILS: - Showers with heavy downpours and a few thunderstorms early Sunday
    morning into midday Sunday may lead to flooding. Average rainfall
    amounts are forecast to range from 1.5 to 2.5 inches with locally
    higher amounts of 3 to 5 inches possible. Peak hourly rates could
    reach 2 to 2.5 inches.
    - http://www.weather.gov/safety/flood

    PRECAUTIONARY / PREPAREDNESS ACTIONS:

    You should monitor later forecasts and be alert for possible Flood
    Warnings. Those living in areas prone to flooding should be prepared
    to take action should flooding develop.

    &&

    Coastal Flood Statement - 2:37am Sun Sep 13 2026

    ...COASTAL FLOOD STATEMENT IN EFFECT FROM NOON EDT TODAY THROUGH THIS AFTERNOON...

    WHAT: Up to one half foot of inundation above ground level
    expected in vulnerable areas near the waterfront and shoreline.

    WHERE: Southern Fairfield County.

    WHEN: From noon EDT today through this afternoon.

    IMPACTS: Brief minor flooding of the more vulnerable
    locations near the waterfront and shoreline.

    PRECAUTIONARY / PREPAREDNESS ACTIONS:

    Do not drive through flooded roadways.

    &&

    Your Privacy Choices