South Pekin, IL Weather & Growing Conditions
Overnight
69°F
Partly Cloudy
Partly cloudy, with a low around 69. Southeast wind around 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 69°F | Partly Cloudy | 7 mph SE | 6% |
| Saturday | 86°F | Slight Chance Showers And Thunderstorms | 8 mph SE | 24% |
| Saturday Night | 69°F | Chance Showers And Thunderstorms | 2 to 6 mph S | 55% |
| Sunday | 77°F | Showers And Thunderstorms Likely | 2 to 12 mph N | 70% |
| Sunday Night | 59°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 14 mph NE | 62% |
| Monday | 66°F | Showers And Thunderstorms Likely | 13 mph NE | 64% |
| Monday Night | 54°F | Chance Rain Showers | 13 mph NE | 48% |
| Tuesday | 65°F | Slight Chance Rain Showers | 13 mph NE | 21% |
| Tuesday Night | 51°F | Partly Cloudy | 6 to 12 mph NNE | 11% |
| Wednesday | 68°F | Mostly Sunny | 9 mph NNE | 4% |
| Wednesday Night | 53°F | Partly Cloudy | 3 to 8 mph NNE | 1% |
| Thursday | 70°F | Mostly Sunny | 6 mph NNE | 2% |
| Thursday Night | 55°F | Partly Cloudy | 5 mph NE | 2% |
| Friday | 73°F | Mostly Sunny | 3 to 7 mph NE | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for South Pekin, IL
Last spring frost
Apr 16
First fall frost
Oct 23
Growing season
189 days
Hardiness zone
6a
Explore more for South Pekin, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Peoria Gtr Peoria Ap, Il (11.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.