Carbon Cliff, IL Weather & Growing Conditions
Today
83°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 83. South wind around 10 mph. Chance of precipitation is 40%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Slight Chance Showers And Thunderstorms | 10 mph S | 37% |
| Tonight | 65°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 to 10 mph W | 87% |
| Sunday | 71°F | Patchy Fog | 10 to 15 mph NE | 78% |
| Sunday Night | 57°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 48% |
| Monday | 65°F | Rain Showers Likely | 15 mph NE | 58% |
| Monday Night | 52°F | Chance Rain Showers | 10 to 15 mph NE | 45% |
| Tuesday | 63°F | Slight Chance Rain Showers | 10 to 15 mph NE | 21% |
| Tuesday Night | 49°F | Partly Cloudy | 5 to 10 mph NE | 8% |
| Wednesday | 67°F | Mostly Sunny | 5 to 10 mph NE | 2% |
| Wednesday Night | 52°F | Partly Cloudy | 5 mph NE | 1% |
| Thursday | 68°F | Mostly Sunny | 5 mph NE | 5% |
| Thursday Night | 53°F | Partly Cloudy | 0 to 5 mph NE | 4% |
| Friday | 72°F | Mostly Sunny | 5 mph NE | 3% |
| Friday Night | 53°F | Partly Cloudy | 0 to 5 mph E | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Carbon Cliff, IL
Last spring frost
Apr 16
First fall frost
Oct 25
Growing season
190 days
Hardiness zone
5b
Explore more for Carbon Cliff, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Le Claire L&D 14, Ia (5.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.