Southport, CT Weather & Growing Conditions
Overnight
51°F
Patchy Fog
Patchy fog. Partly cloudy, with a low around 51. Southwest wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 51°F | Patchy Fog | 3 mph SW | 3% |
| Wednesday | 71°F | Patchy Fog then Sunny | 3 to 12 mph SW | 3% |
| Wednesday Night | 57°F | Partly Cloudy | 3 to 8 mph SW | 3% |
| Thursday | 70°F | Chance Rain Showers | 3 to 10 mph S | 33% |
| Thursday Night | 60°F | Rain Showers | 3 to 8 mph SW | 83% |
| Friday | 67°F | Showers And Thunderstorms | 3 to 7 mph S | 86% |
| Friday Night | 54°F | Showers And Thunderstorms | 5 mph W | 86% |
| Saturday | 65°F | Rain Showers Likely | 8 mph NW | 56% |
| Saturday Night | 42°F | Slight Chance Rain Showers | 9 mph NW | 21% |
| Sunday | 60°F | Slight Chance Rain Showers then Mostly Sunny | 10 mph W | 17% |
| Sunday Night | 39°F | Partly Cloudy | 8 mph W | 14% |
| Monday | 59°F | Chance Light Rain | 8 to 15 mph NW | 26% |
| Monday Night | 38°F | Chance Light Rain | 12 mph W | 26% |
| Tuesday | 60°F | Slight Chance Light Rain then Mostly Sunny | 12 to 15 mph W | 19% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Southport, CT
Last spring frost
Apr 5
First fall frost
Nov 6
Growing season
216 days
Hardiness zone
7a
Explore more for Southport, CT: full frost dates · planting calendar · Connecticut frost dates
Climate data from the nearest NOAA station, Bridgeport Sikorsky Mem Ap, Ct (8.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.