Timberlane, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Timberlane, a village in Boone County, Illinois.
Today
76°F
Showers And Thunderstorms then Showers And Thunderstorms Likely
Showers and thunderstorms before noon, then showers and thunderstorms likely between noon and 2pm, then showers and thunderstorms likely. Cloudy. High near 76, with temperatures falling to around 74 in the afternoon. South southeast wind 5 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
7-day forecast for Timberlane
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 76°F | Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 to 10 mph SSE | 100% |
| Tonight | 60°F | Showers And Thunderstorms | 5 to 10 mph ENE | 93% |
| Sunday | 68°F | Chance Showers And Thunderstorms | 10 to 15 mph NNE | 53% |
| Sunday Night | 54°F | Slight Chance Rain Showers | 15 mph NE | 17% |
| Monday | 63°F | Chance Rain Showers | 15 mph ENE | 31% |
| Monday Night | 49°F | Slight Chance Rain Showers | 10 to 15 mph NE | 17% |
| Tuesday | 61°F | Slight Chance Rain Showers then Mostly Cloudy | 10 to 15 mph NE | 15% |
| Tuesday Night | 48°F | Partly Cloudy | 5 to 15 mph NE | 10% |
| Wednesday | 64°F | Mostly Sunny | 10 to 15 mph NE | 4% |
| Wednesday Night | 49°F | Partly Cloudy | 5 to 10 mph NE | 1% |
| Thursday | 66°F | Mostly Sunny | 5 to 10 mph NE | 4% |
| Thursday Night | 50°F | Mostly Cloudy | 0 to 5 mph NE | 4% |
| Friday | 70°F | Partly Sunny | 0 to 10 mph NE | 3% |
| Friday Night | 50°F | Partly Cloudy | 0 to 5 mph ENE | 3% |
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 Sep 19, 2026.