Colp, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Colp, a village in Williamson County, Illinois.
This Afternoon
98°F
Sunny
Sunny. High near 98, with temperatures falling to around 96 in the afternoon. West southwest wind 3 to 7 mph.
7-day forecast for Colp
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 98°F | Sunny | 3 to 7 mph WSW | 1% |
| 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 | Mostly Cloudy | 1 to 6 mph NNE | 0% |
| Friday | 79°F | Partly Sunny | 2 to 8 mph NNE | 4% |
| Friday Night | 58°F | Partly Cloudy | 2 to 6 mph NNE | 4% |
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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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 19, 2026.