Carbon, IA Weather & Growing Conditions
Overnight
43°F
Cloudy
Cloudy. Low around 43, with temperatures rising to around 45 overnight. West northwest wind around 15 mph, with gusts as high as 22 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 43°F | Cloudy | 15 mph WNW | 14% |
| Wednesday | 51°F | Slight Chance Rain Showers then Cloudy | 13 to 16 mph WNW | 15% |
| Wednesday Night | 42°F | Mostly Cloudy then Slight Chance Rain Showers | 8 to 12 mph W | 17% |
| Thursday | 52°F | Chance Rain Showers then Mostly Cloudy | 8 to 12 mph NW | 28% |
| Thursday Night | 38°F | Mostly Cloudy | 3 to 8 mph N | 5% |
| Friday | 51°F | Partly Sunny | 2 to 6 mph N | 1% |
| Friday Night | 31°F | Partly Cloudy | 1 mph NNE | 0% |
| Saturday | 54°F | Mostly Sunny | 0 to 5 mph SW | 0% |
| Saturday Night | 35°F | Mostly Clear | 2 mph WSW | 0% |
| Sunday | 60°F | Sunny | 2 to 6 mph WSW | 0% |
| Sunday Night | 38°F | Clear | 5 mph SSW | 0% |
| Monday | 65°F | Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 41°F | Mostly Clear | 5 mph WNW | 0% |
| Tuesday | 65°F | Sunny | 5 mph N | 0% |
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.