Walnut Hill, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Walnut Hill, a village in Jefferson County, Illinois.
Overnight
61°F
Clear
Clear, with a low around 61. Wind around 0 mph.
7-day forecast for Walnut Hill
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 61°F | Clear | 0 mph | 0% |
| Tuesday | 86°F | Patchy Fog then Sunny | 1 mph E | 0% |
| Tuesday Night | 64°F | Mostly Clear | 1 mph E | 0% |
| Wednesday | 88°F | Sunny | 1 mph S | 2% |
| Wednesday Night | 69°F | Partly Cloudy then Chance Showers And Thunderstorms | 2 mph S | 27% |
| Thursday | 86°F | Chance Showers And Thunderstorms | 3 mph SSW | 53% |
| Thursday Night | 69°F | Chance Showers And Thunderstorms | 2 mph SSE | 58% |
| Friday | 86°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 2 mph SW | 58% |
| Friday Night | 69°F | Chance Showers And Thunderstorms | 1 mph SSW | 37% |
| Saturday | 88°F | Chance Showers And Thunderstorms | 2 mph SSW | 37% |
| Saturday Night | 70°F | Partly Cloudy | 2 mph S | 13% |
| Sunday | 90°F | Sunny | 2 to 7 mph SSW | 8% |
| Sunday Night | 72°F | Mostly Clear | 6 mph SSW | 5% |
| Monday | 92°F | Mostly Sunny | 7 mph SSW | 6% |
Forecast source: National Weather Service (api.weather.gov) for Walnut Hill (38.478, -89.044). Updated through the day.
Growing snapshot for Walnut Hill
Last spring frost
Apr 9
First fall frost
Oct 24
Growing season
196 days
Hardiness zone
6b
More local growing data for Walnut Hill: nearby ZIP 62893 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Iuka 12 Sw, Il (3.7 mi from Walnut Hill). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.