Oconee, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Oconee, a village in Shelby County, Illinois.
Today
85°F
Sunny
Sunny, with a high near 85. South wind around 5 mph.
7-day forecast for Oconee
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Sunny | 5 mph S | 0% |
| Tonight | 66°F | Mostly Clear | 5 mph SSE | 0% |
| Wednesday | 88°F | Sunny | 6 mph S | 4% |
| Wednesday Night | 67°F | Slight Chance Showers And Thunderstorms | 5 mph S | 60% |
| Thursday | 83°F | Showers And Thunderstorms | 6 mph SSW | 78% |
| Thursday Night | 66°F | Chance Showers And Thunderstorms | 3 mph S | 33% |
| Friday | 84°F | Chance Showers And Thunderstorms then Partly Sunny | 3 mph SW | 30% |
| Friday Night | 66°F | Partly Cloudy then Chance Showers And Thunderstorms | 2 mph SSW | 26% |
| Saturday | 86°F | Chance Showers And Thunderstorms then Mostly Sunny | 5 mph SSW | 26% |
| Saturday Night | 69°F | Mostly Clear | 5 mph S | 13% |
| Sunday | 88°F | Sunny | 6 to 10 mph SSW | 7% |
| Sunday Night | 71°F | Mostly Clear | 8 mph SSW | 7% |
| Monday | 90°F | Mostly Sunny | 9 mph SSW | 10% |
| Monday Night | 72°F | Slight Chance Showers And Thunderstorms | 7 mph SSW | 22% |
Forecast source: National Weather Service (api.weather.gov) for Oconee (39.286, -89.107). Updated through the day.
Growing snapshot for Oconee
Last spring frost
Apr 17
First fall frost
Oct 23
Growing season
188 days
Hardiness zone
6b
More local growing data for Oconee: nearby ZIP 62553 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Cowden
Findlay
Herrick
Lakewood
Moweaqua
Shelbyville
Sigel
Stewardson
Strasburg
Tower Hill
Westervelt
Windsor
Climate data from the nearest NOAA station, Pana, Il (6.8 mi from Oconee). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.