Clayton, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Clayton, a village in Adams County, Illinois.
Today
88°F
Mostly Sunny
Mostly sunny, with a high near 88. South wind 3 to 7 mph.
7-day forecast for Clayton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 88°F | Mostly Sunny | 3 to 7 mph S | 0% |
| Tonight | 69°F | Partly Cloudy | 6 mph S | 14% |
| Wednesday | 86°F | Partly Sunny then Scattered Showers And Thunderstorms | 5 mph S | 47% |
| Wednesday Night | 67°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 7 mph N | 89% |
| Thursday | 82°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 mph S | 89% |
| Thursday Night | 65°F | Partly Cloudy | 3 mph SE | 10% |
| Friday | 84°F | Mostly Sunny | 2 mph S | 7% |
| Friday Night | 66°F | Chance Showers And Thunderstorms | 3 mph S | 30% |
| Saturday | 88°F | Slight Chance Showers And Thunderstorms then Sunny | 6 mph SW | 24% |
| Saturday Night | 72°F | Mostly Clear | 5 to 10 mph S | 6% |
| Sunday | 89°F | Sunny | 13 mph SW | 3% |
| Sunday Night | 72°F | Mostly Clear | 12 mph S | 12% |
| Monday | 90°F | Mostly Sunny | 12 mph SW | 12% |
| Monday Night | 73°F | Slight Chance Showers And Thunderstorms | 9 mph S | 26% |
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 Aug 4, 2026.