Lena, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lena, a village in Stephenson County, Illinois.
This Afternoon
67°F
Showers And Thunderstorms
Showers and thunderstorms. Cloudy, with a high near 67. South wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Lena
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 67°F | Showers And Thunderstorms | 15 to 20 mph S | 96% |
| Tonight | 53°F | Showers And Thunderstorms | 15 mph S | 86% |
| Wednesday | 56°F | Rain Showers Likely | 15 mph SW | 71% |
| Wednesday Night | 44°F | Chance Rain Showers | 15 mph SW | 33% |
| Thursday | 53°F | Rain Showers Likely | 10 to 15 mph W | 56% |
| Thursday Night | 39°F | Chance Rain Showers then Mostly Cloudy | 10 mph N | 28% |
| Friday | 49°F | Partly Sunny | 5 to 10 mph N | 13% |
| Friday Night | 31°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Saturday | 51°F | Mostly Sunny | 0 to 5 mph W | 4% |
| Saturday Night | 33°F | Partly Cloudy | 5 mph W | 7% |
| Sunday | 56°F | Sunny | 5 to 10 mph W | 9% |
| Sunday Night | 34°F | Mostly Clear | 5 mph W | 2% |
| Monday | 60°F | Sunny | 5 to 10 mph SW | 1% |
| Monday Night | 38°F | Mostly Clear | 5 to 10 mph W | 0% |
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 Nov 3, 2026.