Oreana, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Oreana, a village in Macon County, Illinois.
Today
86°F
Patchy Fog then Sunny
Patchy fog before 9am. Sunny, with a high near 86. South wind around 6 mph.
7-day forecast for Oreana
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Patchy Fog then Sunny | 6 mph S | 0% |
| Tonight | 66°F | Mostly Clear | 6 mph SSE | 1% |
| Wednesday | 86°F | Mostly Sunny | 5 to 9 mph S | 10% |
| Wednesday Night | 67°F | Chance Showers And Thunderstorms | 5 to 8 mph S | 80% |
| Thursday | 81°F | Showers And Thunderstorms | 8 mph SSW | 80% |
| Thursday Night | 65°F | Chance Showers And Thunderstorms | 3 to 7 mph S | 25% |
| Friday | 83°F | Mostly Sunny | 6 mph SSW | 11% |
| Friday Night | 66°F | Chance Showers And Thunderstorms | 5 mph SSW | 25% |
| Saturday | 85°F | Slight Chance Rain Showers then Mostly Sunny | 3 to 8 mph SSW | 17% |
| Saturday Night | 70°F | Mostly Clear | 9 mph S | 13% |
| Sunday | 88°F | Sunny | 9 to 15 mph SSW | 7% |
| Sunday Night | 72°F | Mostly Clear | 10 to 15 mph SSW | 11% |
| Monday | 88°F | Mostly Sunny | 10 to 14 mph SSW | 14% |
| Monday Night | 72°F | Slight Chance Showers And Thunderstorms | 13 mph SW | 25% |
Forecast source: National Weather Service (api.weather.gov) for Oreana (39.938, -88.868). Updated through the day.
Growing snapshot for Oreana
Last spring frost
Apr 16
First fall frost
Oct 22
Growing season
187 days
Hardiness zone
6a
More local growing data for Oreana: nearby ZIP 62554 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Argenta
Boody
Dalton City
Decatur
Elwin
Forsyth
Harristown
Long Creek
Macon
Maroa
Mount Zion
Niantic
Warrensburg
Climate data from the nearest NOAA station, Decatur Ap, Il (7.7 mi from Oreana). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.