Leland, IL Weather & Growing Conditions
Overnight
64°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Cloudy. Low around 64, with temperatures rising to around 66 overnight. East southeast wind around 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 64°F | Showers And Thunderstorms Likely | 10 mph ESE | 68% |
| Saturday | 80°F | Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 to 10 mph SE | 96% |
| Saturday Night | 65°F | Showers And Thunderstorms | 5 to 10 mph ESE | 96% |
| Sunday | 71°F | Showers And Thunderstorms Likely | 10 to 15 mph NNE | 65% |
| Sunday Night | 57°F | Chance Showers And Thunderstorms | 15 mph NE | 41% |
| Monday | 65°F | Chance Rain Showers | 15 mph ENE | 46% |
| Monday Night | 52°F | Chance Rain Showers | 15 mph NE | 26% |
| Tuesday | 64°F | Slight Chance Rain Showers | 15 mph NE | 20% |
| Tuesday Night | 51°F | Mostly Cloudy | 10 to 15 mph NE | 11% |
| Wednesday | 67°F | Mostly Sunny | 10 to 15 mph NNE | 6% |
| Wednesday Night | 52°F | Partly Cloudy | 5 to 10 mph NNE | 1% |
| Thursday | 69°F | Partly Sunny | 5 to 10 mph NNE | 3% |
| Thursday Night | 53°F | Partly Cloudy | 5 to 10 mph NE | 3% |
| Friday | 73°F | Mostly Sunny | 5 to 10 mph NE | 3% |
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 Sep 19, 2026.