Lena, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lena, a village in Stephenson County, Illinois.
This Afternoon
69°F
Chance Rain Showers
A chance of rain showers. Partly sunny, with a high near 69. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
7-day forecast for Lena
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 69°F | Chance Rain Showers | 10 mph E | 27% |
| Tonight | 62°F | Chance Showers And Thunderstorms | 10 to 15 mph E | 86% |
| Saturday | 77°F | Showers And Thunderstorms | 5 to 10 mph S | 86% |
| Saturday Night | 61°F | Showers And Thunderstorms | 5 to 10 mph N | 81% |
| Sunday | 67°F | Rain Showers Likely | 15 mph NE | 57% |
| Sunday Night | 54°F | Chance Rain Showers | 15 mph NE | 45% |
| Monday | 63°F | Chance Rain Showers | 15 mph NE | 44% |
| Monday Night | 49°F | Chance Rain Showers | 10 to 15 mph NE | 44% |
| Tuesday | 62°F | Chance Rain Showers | 10 to 15 mph NE | 28% |
| Tuesday Night | 47°F | Partly Cloudy | 5 to 10 mph NE | 9% |
| Wednesday | 65°F | Mostly Sunny | 5 to 10 mph NE | 4% |
| Wednesday Night | 49°F | Partly Cloudy | 5 mph NE | 2% |
| Thursday | 68°F | Mostly Sunny | 5 mph NE | 6% |
| Thursday Night | 51°F | Partly Cloudy | 0 to 5 mph NE | 6% |
Forecast source: National Weather Service (api.weather.gov) for Lena (42.379, -89.822). Updated through the day.
Growing snapshot for Lena
Last spring frost
Apr 27
First fall frost
Oct 9
Growing season
165 days
Hardiness zone
5a
More local growing data for Lena: nearby ZIP 61048 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Adeline
Cedarville
Dakota
Davis
Freeport
German Valley
Lake Summerset
Orangeville
Pearl City
Ridott
Rock City
Willow Lake
Winslow
Climate data from the nearest NOAA station, Stockton 3 Nne, Il (7.7 mi from Lena). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.