Walnut Hill, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Walnut Hill, a village in Jefferson County, Illinois.
This Afternoon
76°F
Slight Chance T-storms
A slight chance of thunderstorms and a slight chance of rain between 4pm and 5pm, then a chance of rain and a slight chance of thunderstorms. Mostly cloudy. High near 76, with temperatures falling to around 72 in the afternoon. South wind 20 to 24 mph, with gusts as high as 31 mph. Chance of precipitation is 30%.
7-day forecast for Walnut Hill
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 76°F | Slight Chance T-storms | 20 to 24 mph S | 27% |
| Tonight | 55°F | Rain | 9 to 17 mph S | 99% |
| Wednesday | 66°F | Slight Chance Light Rain then Mostly Cloudy | 7 to 14 mph WSW | 18% |
| Wednesday Night | 43°F | Partly Cloudy | 5 mph WSW | 0% |
| Thursday | 67°F | Sunny | 3 to 12 mph WSW | 0% |
| Thursday Night | 43°F | Mostly Cloudy | 2 mph WNW | 5% |
| Friday | 59°F | Mostly Cloudy | 3 to 12 mph NNW | 3% |
| Friday Night | 38°F | Partly Cloudy | 2 to 6 mph NNW | 1% |
| Saturday | 56°F | Mostly Sunny | 5 mph NNW | 0% |
| Saturday Night | 34°F | Partly Cloudy | 1 mph NW | 0% |
| Sunday | 61°F | Sunny | 1 to 8 mph W | 6% |
| Sunday Night | 34°F | Mostly Clear | 3 mph NW | 5% |
| Monday | 65°F | Sunny | 1 to 9 mph WSW | 3% |
| Monday Night | 38°F | Mostly Clear | 3 mph SW | 0% |
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 Nov 3, 2026.