Coffeen, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Coffeen, a city in Montgomery County, Illinois.
Overnight
64°F
Clear
Clear, with a low around 64. Northeast wind around 1 mph.
7-day forecast for Coffeen
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 64°F | Clear | 1 mph NE | 0% |
| Tuesday | 85°F | Sunny | 2 mph SE | 0% |
| Tuesday Night | 64°F | Mostly Clear | 2 mph SE | 0% |
| Wednesday | 87°F | Sunny | 0 to 5 mph S | 9% |
| Wednesday Night | 68°F | Slight Chance Showers And Thunderstorms | 3 mph S | 63% |
| Thursday | 83°F | Showers And Thunderstorms | 5 mph SW | 75% |
| Thursday Night | 67°F | Chance Showers And Thunderstorms | 2 mph SE | 43% |
| Friday | 84°F | Chance Showers And Thunderstorms then Partly Sunny | 3 mph SW | 32% |
| Friday Night | 67°F | Chance Showers And Thunderstorms | 2 mph SW | 26% |
| Saturday | 86°F | Chance Showers And Thunderstorms | 3 mph S | 26% |
| Saturday Night | 70°F | Mostly Clear | 3 mph S | 12% |
| Sunday | 88°F | Sunny | 5 to 8 mph S | 6% |
| Sunday Night | 72°F | Mostly Clear | 7 mph S | 5% |
| Monday | 90°F | Mostly Sunny | 5 to 8 mph SW | 8% |
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 Aug 4, 2026.