Coffeen, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Coffeen, a city in Montgomery County, Illinois.
Today
95°F
Partly Sunny
Partly sunny, with a high near 95. Southwest wind 2 to 6 mph.
7-day forecast for Coffeen
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 95°F | Partly Sunny | 2 to 6 mph SW | 12% |
| Tonight | 70°F | Partly Cloudy | 3 mph SW | 5% |
| Sunday | 90°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 1 to 7 mph NW | 32% |
| Sunday Night | 63°F | Showers And Thunderstorms Likely | 6 to 9 mph NE | 57% |
| Monday | 75°F | Showers And Thunderstorms Likely | 7 to 12 mph NE | 72% |
| Monday Night | 56°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 6 to 12 mph NE | 60% |
| Tuesday | 69°F | Slight Chance Rain Showers | 12 mph NE | 21% |
| Tuesday Night | 52°F | Mostly Cloudy | 5 to 10 mph N | 14% |
| Wednesday | 72°F | Mostly Sunny | 6 to 9 mph N | 4% |
| Wednesday Night | 53°F | Partly Cloudy | 2 to 8 mph N | 1% |
| Thursday | 74°F | Mostly Sunny | 3 to 7 mph N | 2% |
| Thursday Night | 54°F | Partly Cloudy | 2 to 7 mph NE | 3% |
| Friday | 76°F | Mostly Sunny | 2 to 8 mph NE | 4% |
| Friday Night | 54°F | Partly Cloudy | 2 to 7 mph NE | 2% |
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 Sep 19, 2026.