Carman, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Carman, a community in Henderson County, Illinois.
Tonight
67°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms between 7pm and 1am, then showers and thunderstorms likely. Mostly cloudy. Low around 67, with temperatures rising to around 69 overnight. Northeast wind 0 to 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Carman
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 67°F | Chance Showers And Thunderstorms | 0 to 5 mph NE | 61% |
| Sunday | 74°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 5 to 10 mph N | 66% |
| Sunday Night | 59°F | Chance Showers And Thunderstorms | 10 mph NE | 66% |
| Monday | 64°F | Showers And Thunderstorms | 10 mph NE | 81% |
| Monday Night | 55°F | Rain Showers Likely | 5 to 10 mph NE | 69% |
| Tuesday | 63°F | Chance Rain Showers | 10 mph NE | 45% |
| Tuesday Night | 50°F | Mostly Cloudy | 5 to 10 mph NE | 5% |
| Wednesday | 65°F | Partly Sunny | 5 mph NE | 0% |
| Wednesday Night | 53°F | Partly Cloudy | 0 to 5 mph NE | 0% |
| Thursday | 69°F | Partly Sunny | 0 to 5 mph NE | 3% |
| Thursday Night | 57°F | Mostly Cloudy then Slight Chance Rain Showers | 0 mph | 15% |
| Friday | 73°F | Slight Chance Rain Showers | 0 to 5 mph NE | 15% |
| Friday Night | 57°F | Partly Cloudy | 0 to 5 mph NE | 6% |
| Saturday | 74°F | Mostly Sunny | 0 to 5 mph E | 6% |
Forecast source: National Weather Service (api.weather.gov) for Carman (40.736, -91.062). Updated through the day.
Growing snapshot for Carman
Last spring frost
Apr 18
First fall frost
Oct 20
Growing season
185 days
Hardiness zone
6a
More local growing data for Carman: nearby ZIP 61425 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Burlington 2S, Ia (4.1 mi from Carman). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.