Greenfield, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Greenfield, a city in Greene County, Illinois.
Overnight
69°F
Partly Cloudy
Partly cloudy, with a low around 69. Southeast wind around 8 mph.
7-day forecast for Greenfield
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 69°F | Partly Cloudy | 8 mph SE | 12% |
| Saturday | 95°F | Partly Sunny | 7 mph SW | 7% |
| Saturday Night | 68°F | Partly Cloudy then Slight Chance Rain Showers | 5 mph SW | 16% |
| Sunday | 88°F | Chance Rain Showers | 2 to 7 mph NW | 48% |
| Sunday Night | 61°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 6 to 9 mph NE | 65% |
| Monday | 75°F | Showers And Thunderstorms Likely | 7 to 12 mph NE | 66% |
| Monday Night | 56°F | Chance Showers And Thunderstorms | 7 to 12 mph NE | 51% |
| Tuesday | 69°F | Slight Chance Rain Showers then Mostly Cloudy | 10 mph NE | 22% |
| Tuesday Night | 50°F | Mostly Cloudy | 5 to 10 mph N | 4% |
| Wednesday | 73°F | Mostly Sunny | 8 mph N | 1% |
| Wednesday Night | 52°F | Partly Cloudy | 2 to 7 mph N | 0% |
| Thursday | 73°F | Mostly Sunny | 3 to 7 mph N | 4% |
| Thursday Night | 54°F | Partly Cloudy | 2 to 6 mph NE | 4% |
| Friday | 75°F | Mostly Sunny | 3 to 7 mph NE | 4% |
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 Sep 19, 2026.