Clay City, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Clay City, a village in Clay County, Illinois.
Tonight
71°F
Slight Chance Showers And Thunderstorms then Partly Cloudy
A slight chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 71. East wind 3 to 7 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Clay City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 71°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 to 7 mph E | 19% |
| Saturday | 95°F | Mostly Sunny | 3 to 8 mph SW | 10% |
| Saturday Night | 71°F | Partly Cloudy | 3 to 7 mph SSW | 7% |
| Sunday | 94°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 2 to 7 mph W | 16% |
| Sunday Night | 66°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 7 mph NNE | 38% |
| Monday | 82°F | Chance Rain Showers then Chance Showers And Thunderstorms | 7 to 10 mph NNE | 51% |
| Monday Night | 59°F | Chance Showers And Thunderstorms | 7 to 13 mph NNE | 51% |
| Tuesday | 73°F | Chance Showers And Thunderstorms then Partly Sunny | 12 mph NNE | 38% |
| Tuesday Night | 55°F | Mostly Cloudy | 5 to 12 mph NNE | 8% |
| Wednesday | 74°F | Partly Sunny | 6 to 10 mph N | 4% |
| Wednesday Night | 55°F | Partly Cloudy | 3 to 9 mph NNE | 3% |
| Thursday | 75°F | Mostly Sunny | 3 to 9 mph NNE | 3% |
| Thursday Night | 57°F | Partly Cloudy | 3 to 7 mph NNE | 3% |
| Friday | 76°F | Mostly Sunny | 3 to 8 mph NNE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Clay City (38.686, -88.349). Updated through the day.
Growing snapshot for Clay City
Last spring frost
Apr 9
First fall frost
Oct 24
Growing season
198 days
Hardiness zone
6b
More local growing data for Clay City: nearby ZIP 62824 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Flora, Il (7.5 mi from Clay City). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.