Carbondale, IL Weather & Growing Conditions
Tonight
73°F
Mostly Clear
Mostly clear. Low around 73, with temperatures rising to around 76 overnight. South southwest wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 73°F | Mostly Clear | 5 mph SSW | 1% |
| Sunday | 97°F | Mostly Sunny | 6 mph WSW | 1% |
| Sunday Night | 69°F | Partly Cloudy then Chance Showers And Thunderstorms | 3 mph NNE | 26% |
| Monday | 88°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 3 to 7 mph NE | 52% |
| Monday Night | 63°F | Chance Showers And Thunderstorms | 6 mph NNE | 52% |
| Tuesday | 77°F | Chance Showers And Thunderstorms | 6 to 10 mph NNE | 45% |
| Tuesday Night | 58°F | Partly Cloudy | 3 to 10 mph N | 4% |
| Wednesday | 76°F | Mostly Sunny | 8 mph N | 1% |
| Wednesday Night | 56°F | Partly Cloudy | 2 to 7 mph N | 0% |
| Thursday | 77°F | Mostly Sunny | 2 to 7 mph N | 0% |
| Thursday Night | 58°F | Partly Cloudy | 1 to 5 mph NNE | 0% |
| Friday | 79°F | Partly Sunny | 2 to 7 mph NNE | 11% |
| Friday Night | 59°F | Partly Cloudy | 2 to 6 mph NNE | 11% |
| Saturday | 81°F | Mostly Sunny | 2 to 6 mph NE | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Carbondale, IL
Last spring frost
Apr 9
First fall frost
Oct 22
Growing season
195 days
Hardiness zone
7a
Explore more for Carbondale, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Carbondale Sewage Plt, Il (4.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.