Stonington, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Stonington, a village in Christian County, Illinois.
Overnight
70°F
Partly Cloudy
Partly cloudy, with a low around 70. South southeast wind around 7 mph.
7-day forecast for Stonington
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 70°F | Partly Cloudy | 7 mph SSE | 5% |
| Saturday | 93°F | Partly Sunny | 7 mph SSW | 10% |
| Saturday Night | 70°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 6 mph SSW | 15% |
| Sunday | 85°F | Chance Showers And Thunderstorms | 3 to 10 mph N | 39% |
| Sunday Night | 61°F | Chance Showers And Thunderstorms | 12 mph NE | 66% |
| Monday | 72°F | Showers And Thunderstorms Likely | 14 mph NE | 69% |
| Monday Night | 55°F | Chance Rain Showers | 9 to 13 mph NE | 50% |
| Tuesday | 68°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 14 mph NE | 21% |
| Tuesday Night | 52°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 6 to 12 mph NNE | 21% |
| Wednesday | 71°F | Mostly Sunny | 10 mph NNE | 3% |
| Wednesday Night | 53°F | Partly Cloudy | 3 to 9 mph NNE | 2% |
| Thursday | 73°F | Mostly Sunny | 5 to 9 mph NNE | 2% |
| Thursday Night | 55°F | Partly Cloudy | 3 to 8 mph NNE | 2% |
| Friday | 75°F | Mostly Sunny | 5 to 9 mph NE | 2% |
Forecast source: National Weather Service (api.weather.gov) for Stonington (39.639, -89.192). Updated through the day.
Growing snapshot for Stonington
Last spring frost
Apr 14
First fall frost
Oct 24
Growing season
192 days
Hardiness zone
6a
More local growing data for Stonington: nearby ZIP 62567 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Assumption
Blue Mound
Bulpitt
Edinburg
Jeisyville
Kincaid
Langleyville
Morrisonville
Mount Auburn
Owaneco
Palmer
Pana
Taylorville
Tovey
Climate data from the nearest NOAA station, Decatur Wtp, Il (17.9 mi from Stonington). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.