Coffeen, IL Weather & Growing Conditions
Overnight
70°F
Partly Cloudy
Partly cloudy, with a low around 70. Southeast wind around 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 70°F | Partly Cloudy | 7 mph SE | 10% |
| Saturday | 96°F | Mostly Sunny | 6 mph SW | 7% |
| Saturday Night | 70°F | Partly Cloudy | 3 mph S | 5% |
| Sunday | 92°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 1 to 6 mph NW | 24% |
| Sunday Night | 63°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 7 mph N | 52% |
| Monday | 78°F | Rain Showers Likely | 5 to 10 mph NE | 60% |
| Monday Night | 57°F | Showers And Thunderstorms Likely | 6 to 12 mph NE | 60% |
| Tuesday | 72°F | Chance Rain Showers then Partly Sunny | 10 mph NE | 25% |
| Tuesday Night | 52°F | Mostly Cloudy | 3 to 10 mph N | 4% |
| Wednesday | 74°F | Mostly Sunny | 6 to 9 mph N | 3% |
| Wednesday Night | 53°F | Partly Cloudy | 2 to 8 mph N | 3% |
| Thursday | 76°F | Mostly Sunny | 2 to 8 mph N | 3% |
| Thursday Night | 55°F | Partly Cloudy | 2 to 7 mph N | 3% |
| Friday | 76°F | Mostly Sunny | 2 to 7 mph NE | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Coffeen, IL
Last spring frost
Apr 13
First fall frost
Oct 24
Growing season
192 days
Hardiness zone
6b
Explore more for Coffeen, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Hillsboro, Il (9.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.