Leland, IL Weather & Growing Conditions
Overnight
62°F
Mostly Clear
Mostly clear, with a low around 62. South southwest wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 62°F | Mostly Clear | 5 mph SSW | 0% |
| Tuesday | 84°F | Mostly Sunny | 5 to 10 mph SSW | 0% |
| Tuesday Night | 67°F | Mostly Cloudy then Chance Showers And Thunderstorms | 5 mph SSW | 29% |
| Wednesday | 79°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 mph W | 70% |
| Wednesday Night | 65°F | Showers And Thunderstorms | 5 mph NNW | 86% |
| Thursday | 80°F | Rain Showers Likely then Slight Chance Showers And Thunderstorms | 5 mph ENE | 59% |
| Thursday Night | 62°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SE | 21% |
| Friday | 82°F | Mostly Sunny | 0 to 5 mph SE | 6% |
| Friday Night | 64°F | Mostly Clear | 0 to 5 mph S | 9% |
| Saturday | 84°F | Mostly Sunny | 5 to 10 mph SSW | 10% |
| Saturday Night | 69°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 17% |
| Sunday | 86°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 10 to 15 mph SW | 17% |
| Sunday Night | 70°F | Chance Showers And Thunderstorms | 10 mph SSW | 33% |
| Monday | 86°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 33% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Leland, IL
Last spring frost
Apr 27
First fall frost
Oct 15
Growing season
171 days
Hardiness zone
5b
Explore more for Leland, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Paw Paw 2S, Il (10.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.