Greenfield, IL Weather & Growing Conditions
Tonight
51°F
Rain
Rain before 4am, then a chance of rain showers. Cloudy, with a low around 51. South wind 10 to 17 mph, with gusts as high as 31 mph. Chance of precipitation is 90%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 51°F | Rain | 10 to 17 mph S | 89% |
| Wednesday | 61°F | Chance Rain Showers then Mostly Cloudy | 10 to 14 mph SW | 12% |
| Wednesday Night | 40°F | Partly Cloudy | 8 mph SW | 0% |
| Thursday | 63°F | Mostly Sunny | 6 to 12 mph W | 5% |
| Thursday Night | 39°F | Mostly Cloudy then Slight Chance T-storms | 6 mph NW | 22% |
| Friday | 57°F | Mostly Cloudy | 6 to 9 mph NW | 6% |
| Friday Night | 34°F | Mostly Cloudy | 1 to 7 mph N | 2% |
| Saturday | 56°F | Mostly Sunny | 3 mph NW | 0% |
| Saturday Night | 32°F | Partly Cloudy | 2 mph W | 1% |
| Sunday | 62°F | Sunny | 2 to 7 mph W | 7% |
| Sunday Night | 32°F | Mostly Clear | 5 mph W | 4% |
| Monday | 66°F | Sunny | 2 to 8 mph SW | 2% |
| Monday Night | 37°F | Mostly Clear | 5 mph SW | 1% |
| Tuesday | 68°F | Sunny | 6 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Greenfield, IL
Last spring frost
Apr 13
First fall frost
Oct 22
Growing season
190 days
Hardiness zone
6a
Explore more for Greenfield, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, White Hall 1 E, Il (5.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.