Greenville, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Greenville, a city in Bond County, Illinois.
Today
85°F
Sunny
Sunny, with a high near 85. South wind around 2 mph.
7-day forecast for Greenville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Sunny | 2 mph S | 0% |
| Tonight | 65°F | Mostly Clear | 2 mph SE | 0% |
| Wednesday | 87°F | Sunny | 0 to 5 mph S | 6% |
| Wednesday Night | 69°F | Partly Cloudy then Showers And Thunderstorms Likely | 3 mph S | 55% |
| Thursday | 84°F | Showers And Thunderstorms Likely | 5 mph SW | 71% |
| Thursday Night | 68°F | Chance Showers And Thunderstorms | 0 to 3 mph SE | 48% |
| Friday | 85°F | Chance Showers And Thunderstorms | 0 to 3 mph SW | 31% |
| Friday Night | 68°F | Chance Showers And Thunderstorms | 2 mph SW | 29% |
| Saturday | 87°F | Chance Showers And Thunderstorms | 0 to 3 mph S | 29% |
| Saturday Night | 71°F | Mostly Clear | 3 mph S | 12% |
| Sunday | 89°F | Sunny | 3 to 9 mph S | 7% |
| Sunday Night | 73°F | Mostly Clear | 5 to 8 mph S | 5% |
| Monday | 91°F | Sunny | 5 to 8 mph SW | 6% |
| Monday Night | 74°F | Slight Chance Showers And Thunderstorms | 7 mph S | 15% |
Forecast source: National Weather Service (api.weather.gov) for Greenville (38.887, -89.389). Updated through the day.
Growing snapshot for Greenville
Last spring frost
Apr 10
First fall frost
Oct 24
Growing season
196 days
Hardiness zone
6b
More local growing data for Greenville: nearby ZIP 62246 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Vandalia, Il (18.5 mi from Greenville). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.