Walnut Hill, IL Weather & Growing Conditions
Tonight
55°F
Rain Showers
Rain showers before 5am. Mostly cloudy. Low around 55, with temperatures rising to around 58 overnight. South southwest wind 9 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 55°F | Rain Showers | 9 to 14 mph SSW | 99% |
| Wednesday | 66°F | Partly Sunny | 6 to 14 mph WSW | 12% |
| Wednesday Night | 43°F | Partly Cloudy | 3 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 7 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% |
| Tuesday | 68°F | Sunny | 2 to 6 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Walnut Hill, IL
Last spring frost
Apr 9
First fall frost
Oct 24
Growing season
196 days
Hardiness zone
6b
Explore more for Walnut Hill, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Iuka 12 Sw, Il (3.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.