Greenfield, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Greenfield, a city in Greene County, Illinois.
Tonight
51°F
Rain
Rain before 4am, then a chance of rain showers. Cloudy, with a low around 51. South wind 9 to 17 mph, with gusts as high as 32 mph. Chance of precipitation is 90%.
7-day forecast for Greenfield
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 51°F | Rain | 9 to 17 mph S | 92% |
| Wednesday | 61°F | Chance Rain Showers then Mostly Cloudy | 9 to 14 mph SW | 12% |
| Wednesday Night | 40°F | Partly Cloudy | 8 mph SW | 0% |
| Thursday | 63°F | Sunny | 6 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.