Lee, IL Weather & Growing Conditions
Tonight
63°F
Mostly Cloudy then Chance Showers And Thunderstorms
A slight chance of rain showers between midnight and 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 63. East southeast wind 10 to 15 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 63°F | Mostly Cloudy then Chance Showers And Thunderstorms | 10 to 15 mph ESE | 43% |
| Saturday | 78°F | Showers And Thunderstorms Likely | 5 to 15 mph SSE | 81% |
| Saturday Night | 63°F | Showers And Thunderstorms Likely then Showers And Thunderstorms | 5 to 10 mph NNE | 80% |
| Sunday | 68°F | Showers And Thunderstorms | 10 to 20 mph NE | 78% |
| Sunday Night | 56°F | Rain Showers Likely | 15 mph NE | 65% |
| Monday | 64°F | Chance Rain Showers | 15 mph ENE | 51% |
| Monday Night | 51°F | Chance Rain Showers | 10 to 15 mph NE | 34% |
| Tuesday | 63°F | Chance Rain Showers | 15 mph NE | 30% |
| Tuesday Night | 49°F | Mostly Cloudy | 5 to 15 mph NE | 8% |
| Wednesday | 66°F | Partly Sunny | 10 mph NNE | 5% |
| Wednesday Night | 50°F | Partly Cloudy | 5 to 10 mph NNE | 4% |
| Thursday | 69°F | Mostly Sunny | 5 to 10 mph NNE | 4% |
| Thursday Night | 52°F | Partly Cloudy | 5 mph NNE | 4% |
| Friday | 70°F | Mostly Sunny | 5 to 10 mph NNE | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Lee, IL
Last spring frost
Apr 28
First fall frost
Oct 10
Growing season
163 days
Hardiness zone
5b
Explore more for Lee, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Shabbona 5 Nne, Il (6.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.