Colp, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Colp, a village in Williamson County, Illinois.
Tonight
73°F
Mostly Clear
Mostly clear. Low around 73, with temperatures rising to around 75 overnight. South southwest wind around 5 mph.
7-day forecast for Colp
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 73°F | Mostly Clear | 5 mph SSW | 1% |
| Sunday | 96°F | Mostly Sunny | 3 to 7 mph WSW | 1% |
| Sunday Night | 68°F | Partly Cloudy then Chance Showers And Thunderstorms | 5 mph NNE | 30% |
| Monday | 87°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 5 to 8 mph NE | 55% |
| Monday Night | 62°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 3 to 7 mph NNE | 55% |
| Tuesday | 76°F | Chance Showers And Thunderstorms | 6 to 10 mph NNE | 49% |
| Tuesday Night | 57°F | Partly Cloudy | 3 to 10 mph N | 3% |
| Wednesday | 75°F | Mostly Sunny | 6 to 9 mph N | 1% |
| Wednesday Night | 55°F | Partly Cloudy | 2 to 8 mph N | 0% |
| Thursday | 77°F | Mostly Sunny | 2 to 7 mph N | 0% |
| Thursday Night | 58°F | Partly Cloudy | 1 to 6 mph NNE | 0% |
| Friday | 79°F | Partly Sunny then Slight Chance Rain Showers | 2 to 8 mph NNE | 15% |
| Friday Night | 58°F | Slight Chance Rain Showers then Partly Cloudy | 2 to 6 mph NNE | 15% |
| Saturday | 81°F | Mostly Sunny | 2 to 6 mph NE | 2% |
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
Nearby towns & communities
Blairsville
Bush
Cambria
Carterville
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Creal Springs
Energy
Freeman Spur
Herrin
Hurst
Johnston City
Marion
Pittsburg
Spillertown
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 Sep 20, 2026.