South Pekin, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for South Pekin, a village in Tazewell County, Illinois.
Overnight
56°F
Slight Chance Light Rain
A slight chance of rain before 5am. Mostly cloudy, with a low around 56. South southwest wind around 13 mph, with gusts as high as 24 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for South Pekin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 56°F | Slight Chance Light Rain | 13 mph SSW | 17% |
| Wednesday | 59°F | Patchy Drizzle | 12 to 15 mph SW | 12% |
| Wednesday Night | 46°F | Patchy Drizzle then Mostly Cloudy | 13 mph SW | 10% |
| Thursday | 59°F | Mostly Cloudy then Slight Chance Light Rain | 10 to 14 mph W | 18% |
| Thursday Night | 43°F | Slight Chance Light Rain then Mostly Cloudy | 6 to 9 mph NW | 24% |
| Friday | 53°F | Partly Sunny | 7 to 12 mph N | 6% |
| Friday Night | 33°F | Partly Cloudy | 1 to 6 mph NNW | 0% |
| Saturday | 54°F | Sunny | 1 to 5 mph NW | 0% |
| Saturday Night | 33°F | Mostly Clear | 2 mph WNW | 1% |
| Sunday | 59°F | Sunny | 2 to 7 mph W | 1% |
| Sunday Night | 34°F | Clear | 3 mph W | 1% |
| Monday | 64°F | Sunny | 1 to 7 mph SW | 0% |
| Monday Night | 39°F | Mostly Clear | 1 to 5 mph WSW | 0% |
| Tuesday | 66°F | Sunny | 1 to 5 mph WNW | 1% |
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 Nov 4, 2026.