Harman US

Carman, IL Weather & Growing Conditions

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

Overnight
52°F
Mostly Cloudy
Mostly cloudy, with a low around 52. Southwest wind around 10 mph, with gusts as high as 20 mph.

7-day forecast for Carman

WhenTempForecastWindPrecip
Overnight 52°F Mostly Cloudy 10 mph SW 8%
Wednesday 54°F Slight Chance Rain Showers then Mostly Cloudy 10 to 15 mph SW 17%
Wednesday Night 46°F Mostly Cloudy 10 mph SW 4%
Thursday 56°F Mostly Cloudy then Chance Rain Showers 5 to 10 mph W 35%
Thursday Night 43°F Chance Rain Showers 5 mph NW 26%
Friday 51°F Partly Sunny 5 to 10 mph N 9%
Friday Night 33°F Partly Cloudy 0 to 5 mph N 0%
Saturday 52°F Sunny 0 to 5 mph NW 0%
Saturday Night 35°F Mostly Clear 0 mph 1%
Sunday 58°F Sunny 0 to 5 mph W 1%
Sunday Night 36°F Clear 0 mph 0%
Monday 64°F Sunny 0 to 5 mph SW 0%
Monday Night 41°F Clear 0 to 5 mph W 0%
Tuesday 65°F Sunny 0 to 5 mph NW 0%

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 Nov 4, 2026.