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
96°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 3pm. Sunny. High near 96, with temperatures falling to around 94 in the afternoon. Southwest wind around 1 mph. Chance of precipitation is 30%.
7-day forecast for Walnut Hill
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 96°F | Chance Showers And Thunderstorms | 1 mph SW | 26% |
| Tonight | 71°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 3 mph SE | 24% |
| Saturday | 97°F | Sunny | 2 to 6 mph SW | 6% |
| Saturday Night | 72°F | Partly Cloudy | 3 mph SSW | 0% |
| Sunday | 95°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 2 to 7 mph W | 15% |
| Sunday Night | 67°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 mph NNE | 40% |
| Monday | 84°F | Chance Showers And Thunderstorms | 5 to 10 mph NNE | 54% |
| Monday Night | 60°F | Chance Showers And Thunderstorms | 5 to 12 mph NNE | 54% |
| Tuesday | 74°F | Chance Showers And Thunderstorms then Partly Sunny | 7 to 12 mph NNE | 28% |
| Tuesday Night | 55°F | Mostly Cloudy | 3 to 12 mph NNE | 7% |
| Wednesday | 75°F | Mostly Sunny | 5 to 9 mph N | 3% |
| Wednesday Night | 55°F | Partly Cloudy | 2 to 8 mph NNE | 2% |
| Thursday | 76°F | Mostly Sunny | 2 to 8 mph NNE | 2% |
| Thursday Night | 57°F | Partly Cloudy | 2 to 7 mph NNE | 2% |
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 Sep 18, 2026.