Timberlane, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Timberlane, a village in Boone County, Illinois.
Overnight
57°F
Rain Showers
Rain showers. Cloudy. Low around 57, with temperatures rising to around 61 overnight. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Timberlane
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 57°F | Rain Showers | 15 mph S | 83% |
| Wednesday | 61°F | Slight Chance Rain Showers | 15 mph SSW | 22% |
| Wednesday Night | 45°F | Slight Chance Rain Showers | 15 mph SW | 22% |
| Thursday | 55°F | Chance Rain Showers | 10 to 15 mph W | 49% |
| Thursday Night | 38°F | Chance Rain Showers then Mostly Cloudy | 10 mph NNW | 32% |
| Friday | 48°F | Partly Sunny | 10 to 15 mph N | 6% |
| Friday Night | 30°F | Partly Cloudy | 0 to 10 mph NNW | 0% |
| Saturday | 50°F | Sunny | 0 to 5 mph NW | 0% |
| Saturday Night | 32°F | Mostly Clear | 0 to 5 mph W | 0% |
| Sunday | 55°F | Sunny | 5 to 10 mph W | 6% |
| Sunday Night | 33°F | Mostly Clear | 0 to 5 mph W | 0% |
| Monday | 60°F | Sunny | 0 to 10 mph SW | 0% |
| Monday Night | 38°F | Partly Cloudy | 5 to 10 mph W | 0% |
| Tuesday | 61°F | Sunny | 5 mph WNW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Timberlane (42.336, -88.866). Updated through the day.
Growing snapshot for Timberlane
Last spring frost
May 1
First fall frost
Oct 12
Growing season
162 days
Hardiness zone
5b
More local growing data for Timberlane: nearby ZIP 61011 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Beloit, Wi (10.3 mi from Timberlane). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.