South Pekin, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for South Pekin, a village in Tazewell County, Illinois.
Today
87°F
Mostly Sunny
Mostly sunny, with a high near 87. South southwest wind around 6 mph.
7-day forecast for South Pekin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Mostly Sunny | 6 mph SSW | 0% |
| Tonight | 67°F | Partly Cloudy | 5 mph SSE | 11% |
| Wednesday | 85°F | Chance Showers And Thunderstorms | 2 to 7 mph S | 35% |
| Wednesday Night | 66°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 mph WNW | 89% |
| Thursday | 82°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 mph SSW | 80% |
| Thursday Night | 64°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 2 mph SSE | 16% |
| Friday | 84°F | Mostly Sunny | 1 mph SW | 8% |
| Friday Night | 66°F | Slight Chance Showers And Thunderstorms | 1 mph SSW | 21% |
| Saturday | 87°F | Mostly Sunny | 2 to 6 mph SSW | 13% |
| Saturday Night | 70°F | Mostly Clear | 2 to 6 mph S | 9% |
| Sunday | 89°F | Sunny | 6 to 10 mph SSW | 6% |
| Sunday Night | 71°F | Mostly Clear then Slight Chance Showers And Thunderstorms | 5 to 9 mph S | 18% |
| Monday | 89°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 5 to 9 mph SSW | 18% |
| Monday Night | 72°F | Slight Chance Showers And Thunderstorms | 8 mph SW | 27% |
Forecast source: National Weather Service (api.weather.gov) for South Pekin (40.495, -89.652). Updated through the day.
Growing snapshot for South Pekin
Last spring frost
Apr 16
First fall frost
Oct 23
Growing season
189 days
Hardiness zone
6a
More local growing data for South Pekin: nearby ZIP 61564 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Armington
Creve Coeur
Deer Creek
Delavan
East Peoria
Green Valley
Heritage Lake
Hopedale
Mackinaw
Manito
Marquette Heights
Minier
Morton
North Pekin
Pekin
Tremont
Washington
Climate data from the nearest NOAA station, Peoria Gtr Peoria Ap, Il (11.8 mi from South Pekin). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.