Harman US

Carman, IL Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Carman, a community in Henderson County, Illinois.

Tonight
70°F
Partly Cloudy then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms between 4am and 5am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 70. Southeast wind 5 to 10 mph. Chance of precipitation is 30%.

7-day forecast for Carman

WhenTempForecastWindPrecip
Tonight 70°F Partly Cloudy then Slight Chance Showers And Thunderstorms 5 to 10 mph SE 26%
Saturday 86°F Slight Chance Rain Showers then Mostly Cloudy 5 mph S 17%
Saturday Night 67°F Chance Showers And Thunderstorms then Showers And Thunderstorms Likely 0 to 5 mph NW 72%
Sunday 76°F Showers And Thunderstorms Likely 5 to 10 mph N 72%
Sunday Night 59°F Showers And Thunderstorms Likely 10 mph NE 70%
Monday 66°F Rain Showers Likely 10 mph NE 64%
Monday Night 54°F Chance Rain Showers 5 to 10 mph NE 51%
Tuesday 63°F Chance Rain Showers 10 mph NE 32%
Tuesday Night 50°F Mostly Cloudy 5 mph NE 6%
Wednesday 67°F Mostly Sunny 5 mph NE 1%
Wednesday Night 53°F Partly Cloudy 0 to 5 mph NE 1%
Thursday 69°F Partly Sunny 0 to 5 mph NE 5%
Thursday Night 55°F Partly Cloudy 0 to 5 mph NE 5%
Friday 71°F Mostly Sunny 0 to 5 mph NE 5%

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

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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 19, 2026.