Colp, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Colp, a village in Williamson County, Illinois.
Overnight
56°F
Mostly Cloudy
Mostly cloudy. Low around 56, with temperatures rising to around 59 overnight. Southwest wind around 7 mph.
7-day forecast for Colp
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 56°F | Mostly Cloudy | 7 mph SW | 8% |
| Wednesday | 63°F | Partly Sunny | 5 to 9 mph WSW | 9% |
| Wednesday Night | 43°F | Partly Cloudy | 3 mph WSW | 0% |
| Thursday | 69°F | Sunny | 3 to 7 mph WSW | 0% |
| Thursday Night | 44°F | Partly Cloudy | 2 mph WNW | 1% |
| Friday | 61°F | Partly Sunny | 3 to 10 mph NNW | 0% |
| Friday Night | 37°F | Partly Cloudy | 2 to 6 mph N | 0% |
| Saturday | 57°F | Mostly Sunny | 2 to 6 mph N | 0% |
| Saturday Night | 33°F | Partly Cloudy | 1 mph NNW | 0% |
| Sunday | 62°F | Mostly Sunny | 1 to 6 mph NW | 0% |
| Sunday Night | 34°F | Clear | 2 mph NNW | 1% |
| Monday | 66°F | Sunny | 0 to 6 mph WSW | 0% |
| Monday Night | 38°F | Clear | 2 mph SW | 1% |
| Tuesday | 70°F | Sunny | 1 to 5 mph WSW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Colp (37.807, -89.079). Updated through the day.
Growing snapshot for Colp
Last spring frost
Apr 9
First fall frost
Oct 22
Growing season
195 days
Hardiness zone
7a
More local growing data for Colp: nearby ZIP 62921 weather · frost dates · planting calendar · Illinois frost dates
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Whiteash
Climate data from the nearest NOAA station, Carbondale Sewage Plt, Il (6.5 mi from Colp). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.