Carbon, IA Weather & Growing Conditions
This Afternoon
50°F
Cloudy
Cloudy. High near 50, with temperatures falling to around 48 in the afternoon. West wind 12 to 15 mph, with gusts as high as 22 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 50°F | Cloudy | 12 to 15 mph W | 10% |
| Tonight | 41°F | Cloudy then Slight Chance Rain Showers | 10 mph WNW | 24% |
| Thursday | 51°F | Chance Rain Showers then Cloudy | 12 mph NNW | 27% |
| Thursday Night | 36°F | Mostly Cloudy | 5 to 9 mph N | 4% |
| Friday | 50°F | Partly Sunny | 2 to 6 mph NNE | 4% |
| Friday Night | 29°F | Partly Cloudy | 1 mph NE | 0% |
| Saturday | 54°F | Mostly Sunny | 1 to 6 mph SSW | 0% |
| Saturday Night | 34°F | Mostly Clear | 3 mph SW | 0% |
| Sunday | 61°F | Sunny | 1 to 5 mph WSW | 0% |
| Sunday Night | 37°F | Mostly Clear | 5 mph SSW | 0% |
| Monday | 66°F | Sunny | 5 to 12 mph SSW | 0% |
| Monday Night | 40°F | Mostly Clear | 5 mph W | 0% |
| Tuesday | 64°F | Sunny | 5 mph NNE | 1% |
| Tuesday Night | 42°F | Partly Cloudy | 2 mph NE | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Carbon, IA
Last spring frost
Apr 27
First fall frost
Oct 12
Growing season
168 days
Hardiness zone
5b
Explore more for Carbon, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Corning, Ia (5.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.