South Windham, CT Weather & Growing Conditions
Tonight
47°F
Partly Cloudy
Partly cloudy, with a low around 47. Southwest wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 47°F | Partly Cloudy | 5 mph SW | 3% |
| Wednesday | 73°F | Sunny | 3 to 10 mph SW | 4% |
| Wednesday Night | 53°F | Patchy Fog then Partly Cloudy | 7 mph SW | 1% |
| Thursday | 73°F | Slight Chance Light Rain | 5 to 13 mph SW | 19% |
| Thursday Night | 61°F | Light Rain | 5 to 8 mph SW | 80% |
| Friday | 69°F | Rain | 6 mph S | 87% |
| Friday Night | 56°F | Rain | 5 mph SW | 86% |
| Saturday | 66°F | Light Rain Likely | 8 mph NW | 63% |
| Saturday Night | 41°F | Chance Light Rain | 7 mph NW | 32% |
| Sunday | 60°F | Slight Chance Light Rain then Mostly Sunny | 6 to 9 mph W | 19% |
| Sunday Night | 36°F | Partly Cloudy | 6 mph W | 7% |
| Monday | 59°F | Slight Chance Light Rain | 6 to 14 mph NW | 19% |
| Monday Night | 35°F | Slight Chance Light Rain then Partly Cloudy | 8 mph W | 19% |
| Tuesday | 59°F | Sunny | 8 to 16 mph SW | 9% |
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 Nov 4, 2026.