Carbon, IA Weather & Growing Conditions
Tonight
69°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy. Low around 69, with temperatures rising to around 71 overnight. South southwest wind around 9 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 69°F | Chance Showers And Thunderstorms | 9 mph SSW | 39% |
| Saturday | 82°F | Chance Showers And Thunderstorms | 6 to 9 mph WSW | 40% |
| Saturday Night | 62°F | Chance Showers And Thunderstorms | 8 mph N | 47% |
| Sunday | 67°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 8 to 12 mph NNE | 53% |
| Sunday Night | 57°F | Chance Showers And Thunderstorms | 10 mph NE | 53% |
| Monday | 61°F | Rain Showers Likely | 10 mph NE | 59% |
| Monday Night | 52°F | Rain Showers Likely then Mostly Cloudy | 6 to 9 mph NE | 59% |
| Tuesday | 61°F | Mostly Cloudy | 8 mph NE | 9% |
| Tuesday Night | 48°F | Partly Cloudy | 2 to 7 mph ENE | 3% |
| Wednesday | 65°F | Mostly Sunny | 5 mph E | 3% |
| Wednesday Night | 52°F | Mostly Cloudy | 3 mph ESE | 8% |
| Thursday | 66°F | Slight Chance Rain Showers | 3 mph SE | 23% |
| Thursday Night | 55°F | Slight Chance Rain Showers | 2 mph SE | 23% |
| Friday | 67°F | Slight Chance Rain Showers | 2 to 6 mph ESE | 18% |
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 Sep 19, 2026.