Clayton, IL Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Clayton, a village in Adams County, Illinois.

This Afternoon

69°F

Light Rain

Rain and a slight chance of thunderstorms. Cloudy. High near 69, with temperatures falling to around 64 in the afternoon. South wind around 17 mph, with gusts as high as 31 mph. Chance of precipitation is 90%.

7-day forecast for Clayton

When	Temp	Forecast	Wind	Precip
This Afternoon	69°F	Light Rain	17 mph S	88%
Tonight	52°F	Light Rain Likely then Chance Rain Showers	10 to 16 mph S	63%
Wednesday	57°F	Chance Rain Showers then Cloudy	13 to 18 mph SW	12%
Wednesday Night	44°F	Mostly Cloudy	8 to 12 mph SW	1%
Thursday	58°F	Mostly Sunny	9 to 14 mph W	9%
Thursday Night	43°F	Mostly Cloudy then Slight Chance T-storms	5 to 8 mph NW	19%
Friday	54°F	Mostly Cloudy	7 to 10 mph N	6%
Friday Night	37°F	Partly Cloudy	1 to 7 mph N	2%
Saturday	53°F	Mostly Sunny	1 to 5 mph NW	1%
Saturday Night	37°F	Mostly Clear	1 to 5 mph W	1%
Sunday	59°F	Sunny	5 to 8 mph W	9%
Sunday Night	37°F	Mostly Clear	6 mph W	4%
Monday	64°F	Sunny	5 to 10 mph SW	1%
Monday Night	42°F	Mostly Clear	7 mph W	0%

Forecast source: National Weather Service (api.weather.gov) for Clayton (40.031, -90.958). Updated through the day.

Growing snapshot for Clayton

Last spring frost

Apr 18

First fall frost

Oct 21

Growing season

187 days

Hardiness zone

More local growing data for Clayton: nearby ZIP 62324 weather · frost dates · planting calendar · Illinois frost dates

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Climate data from the nearest NOAA station, Golden, Il (8 mi from Clayton). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.