Leland Grove, IL Weather & Growing Conditions
Tonight
73°F
Partly Cloudy
Partly cloudy, with a low around 73. East southeast wind around 8 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 73°F | Partly Cloudy | 8 mph ESE | 9% |
| Saturday | 93°F | Partly Sunny | 9 mph SSW | 11% |
| Saturday Night | 71°F | Mostly Cloudy then Chance Showers And Thunderstorms | 7 mph SSW | 28% |
| Sunday | 87°F | Chance Rain Showers | 3 to 9 mph NNW | 53% |
| Sunday Night | 63°F | Chance Showers And Thunderstorms | 8 to 12 mph NE | 69% |
| Monday | 73°F | Showers And Thunderstorms Likely | 9 to 13 mph NE | 69% |
| Monday Night | 57°F | Chance Showers And Thunderstorms | 8 to 13 mph NE | 48% |
| Tuesday | 70°F | Chance Rain Showers then Mostly Cloudy | 12 mph NNE | 32% |
| Tuesday Night | 53°F | Mostly Cloudy | 5 to 12 mph NNE | 4% |
| Wednesday | 73°F | Partly Sunny | 6 to 9 mph NNE | 2% |
| Wednesday Night | 55°F | Partly Cloudy | 2 to 8 mph NNE | 1% |
| Thursday | 74°F | Mostly Sunny | 3 to 7 mph NNE | 3% |
| Thursday Night | 57°F | Partly Cloudy | 2 to 6 mph NNE | 5% |
| Friday | 76°F | Mostly Sunny | 2 to 7 mph NNE | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Leland Grove, IL
Last spring frost
Apr 15
First fall frost
Oct 22
Growing season
188 days
Hardiness zone
6a
Explore more for Leland Grove, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Springfield #2, Il (1.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.