Coffeen, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Coffeen, a city in Montgomery County, Illinois.
Tonight
54°F
Rain
Rain and a slight chance of thunderstorms. Cloudy, with a low around 54. South wind 9 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 100%.
7-day forecast for Coffeen
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 54°F | Rain | 9 to 15 mph S | 95% |
| Wednesday | 62°F | Chance Rain Showers then Mostly Cloudy | 7 to 13 mph SW | 12% |
| Wednesday Night | 41°F | Partly Cloudy | 6 mph SW | 0% |
| Thursday | 64°F | Sunny | 5 to 12 mph W | 0% |
| Thursday Night | 41°F | Mostly Cloudy | 5 mph NW | 6% |
| Friday | 57°F | Partly Sunny | 5 to 9 mph NW | 8% |
| Friday Night | 35°F | Partly Cloudy | 1 to 6 mph N | 3% |
| Saturday | 55°F | Mostly Sunny | 3 mph NW | 1% |
| Saturday Night | 32°F | Partly Cloudy | 1 mph NW | 1% |
| Sunday | 60°F | Sunny | 1 to 6 mph W | 6% |
| Sunday Night | 33°F | Mostly Clear | 3 mph W | 4% |
| Monday | 64°F | Sunny | 2 to 8 mph SW | 2% |
| Monday Night | 37°F | Mostly Clear | 3 mph SW | 1% |
| Tuesday | 67°F | Sunny | 5 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Coffeen (39.088, -89.390). Updated through the day.
Growing snapshot for Coffeen
Last spring frost
Apr 13
First fall frost
Oct 24
Growing season
192 days
Hardiness zone
6b
More local growing data for Coffeen: nearby ZIP 62017 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Hillsboro, Il (9.4 mi from Coffeen). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.