South Windham, CT Weather & Growing Conditions
Today
73°F
Sunny
Sunny. High near 73, with temperatures falling to around 64 in the afternoon. Southwest wind 5 to 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Sunny | 5 to 9 mph SW | 0% |
| Tonight | 56°F | Partly Cloudy | 2 to 6 mph S | 0% |
| Thursday | 72°F | Mostly Cloudy then Chance Rain Showers | 6 to 13 mph SW | 36% |
| Thursday Night | 61°F | Rain Showers Likely | 5 to 10 mph SW | 67% |
| Friday | 69°F | Rain Showers | 5 mph S | 94% |
| Friday Night | 55°F | Showers And Thunderstorms | 2 mph SW | 87% |
| Saturday | 66°F | Chance Rain Showers | 3 to 7 mph NW | 29% |
| Saturday Night | 43°F | Slight Chance Light Rain | 5 to 8 mph NW | 20% |
| Sunday | 59°F | Slight Chance Light Rain then Mostly Sunny | 6 to 10 mph W | 19% |
| Sunday Night | 37°F | Partly Cloudy | 7 mph W | 4% |
| Monday | 56°F | Sunny | 7 to 14 mph W | 14% |
| Monday Night | 35°F | Partly Cloudy | 8 mph W | 14% |
| Tuesday | 58°F | Mostly Sunny | 7 to 13 mph W | 7% |
| Tuesday Night | 34°F | Mostly Clear | 8 mph W | 4% |
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 (8.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.