Clayton, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Clayton, a village in Adams County, Illinois.
Today
55°F
Slight Chance Drizzle
A slight chance of drizzle before 3pm. Mostly cloudy, with a high near 55. West wind 13 to 16 mph, with gusts as high as 24 mph.
7-day forecast for Clayton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 55°F | Slight Chance Drizzle | 13 to 16 mph W | 12% |
| Tonight | 44°F | Mostly Cloudy | 12 mph W | 3% |
| Thursday | 57°F | Mostly Cloudy | 9 to 15 mph W | 9% |
| Thursday Night | 44°F | Slight Chance Light Rain then Mostly Cloudy | 6 to 9 mph NW | 18% |
| Friday | 52°F | Partly Sunny | 10 mph N | 6% |
| Friday Night | 33°F | Partly Cloudy | 1 to 7 mph N | 0% |
| Saturday | 52°F | Mostly Sunny | 1 to 5 mph NW | 0% |
| Saturday Night | 34°F | Mostly Clear | 3 mph W | 1% |
| Sunday | 58°F | Sunny | 3 to 7 mph W | 2% |
| Sunday Night | 36°F | Clear | 3 mph W | 0% |
| Monday | 64°F | Sunny | 3 to 8 mph SW | 0% |
| Monday Night | 41°F | Clear | 6 mph SW | 0% |
| Tuesday | 65°F | Sunny | 5 mph NW | 0% |
| Tuesday Night | 43°F | Mostly Clear | 2 mph NE | 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
6a
More local growing data for Clayton: nearby ZIP 62324 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Adams
Bloomfield
Burton
Camp Point
Coatsburg
Columbus
Fall Creek
Fowler
Golden
Kingston
La Prairie
Liberty
Lima
Loraine
Marcelline
Mendon
Paloma
Payson
Plainville
Quincy
Richfield
Ursa
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.