Greenfield, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Greenfield, a city in Greene County, Illinois.
Tonight
52°F
Rain
Rain before 4am, then a slight chance of drizzle. Mostly cloudy, with a low around 52. Southwest wind 10 to 17 mph. Chance of precipitation is 80%.
7-day forecast for Greenfield
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Rain | 10 to 17 mph SW | 78% |
| Wednesday | 61°F | Slight Chance Drizzle then Mostly Cloudy | 10 to 14 mph W | 12% |
| Wednesday Night | 41°F | Partly Cloudy | 8 mph SW | 1% |
| Thursday | 62°F | Mostly Sunny | 7 to 12 mph W | 4% |
| Thursday Night | 39°F | Mostly Cloudy then Slight Chance T-storms | 6 mph NW | 22% |
| Friday | 57°F | Partly Sunny | 6 to 9 mph NW | 7% |
| Friday Night | 34°F | Mostly Cloudy | 2 to 7 mph N | 2% |
| Saturday | 55°F | Mostly Sunny | 3 mph NW | 0% |
| Saturday Night | 32°F | Partly Cloudy | 2 mph W | 1% |
| Sunday | 61°F | Sunny | 2 to 7 mph W | 7% |
| Sunday Night | 32°F | Mostly Clear | 5 mph W | 4% |
| Monday | 65°F | Sunny | 2 to 8 mph SW | 2% |
| Monday Night | 37°F | Mostly Clear | 5 mph SW | 1% |
| Tuesday | 68°F | Sunny | 5 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Greenfield (39.344, -90.208). Updated through the day.
Growing snapshot for Greenfield
Last spring frost
Apr 13
First fall frost
Oct 22
Growing season
190 days
Hardiness zone
6a
More local growing data for Greenfield: nearby ZIP 62044 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, White Hall 1 E, Il (10.8 mi from Greenfield). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.