South Windham, CT Weather & Growing Conditions
Tonight
49°F
Partly Cloudy
Partly cloudy. Low around 49, with temperatures rising to around 51 overnight. North wind around 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 49°F | Partly Cloudy | 7 mph N | 0% |
| Saturday | 68°F | Mostly Sunny | 1 to 5 mph NE | 0% |
| Saturday Night | 46°F | Mostly Cloudy | 3 mph SE | 3% |
| Sunday | 66°F | Rain Showers | 2 to 7 mph SE | 85% |
| Sunday Night | 55°F | Rain Showers | 3 to 10 mph E | 87% |
| Monday | 66°F | Chance Rain Showers | 7 to 12 mph NE | 31% |
| Monday Night | 49°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NE | 17% |
| Tuesday | 63°F | Slight Chance Rain Showers | 13 mph NE | 16% |
| Tuesday Night | 47°F | Mostly Cloudy | 9 to 13 mph NE | 8% |
| Wednesday | 64°F | Partly Sunny | 13 to 17 mph NE | 12% |
| Wednesday Night | 48°F | Mostly Cloudy then Slight Chance Rain Showers | 10 to 15 mph NE | 24% |
| Thursday | 63°F | Chance Rain Showers | 16 mph NE | 28% |
| Thursday Night | 48°F | Chance Rain Showers | 9 to 14 mph NE | 32% |
| Friday | 66°F | Chance Rain Showers | 10 to 14 mph N | 31% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for South Windham, CT
Last spring frost
Apr 28
First fall frost
Oct 13
Growing season
167 days
Hardiness zone
6b
Explore more for South Windham, CT: full frost dates · planting calendar · Connecticut frost dates
Climate data from the nearest NOAA station, Willimantic Windham Ap, Ct (4.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.