Bannockburn, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bannockburn, a village in Lake County, Illinois.
This Afternoon
69°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Cloudy, with a high near 69. East wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Bannockburn
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 69°F | Showers And Thunderstorms Likely | 5 mph E | 70% |
| Tonight | 63°F | Showers And Thunderstorms | 5 to 10 mph E | 100% |
| Sunday | 66°F | Showers And Thunderstorms | 10 to 20 mph NE | 87% |
| Sunday Night | 55°F | Slight Chance Rain Showers then Mostly Cloudy | 15 to 20 mph ENE | 18% |
| Monday | 65°F | Chance Rain Showers | 15 to 20 mph ENE | 32% |
| Monday Night | 53°F | Slight Chance Rain Showers | 15 mph ENE | 19% |
| Tuesday | 63°F | Slight Chance Rain Showers | 15 mph ENE | 20% |
| Tuesday Night | 53°F | Slight Chance Rain Showers | 10 to 15 mph NE | 15% |
| Wednesday | 64°F | Slight Chance Rain Showers | 10 mph NE | 17% |
| Wednesday Night | 53°F | Mostly Cloudy | 5 to 10 mph NE | 8% |
| Thursday | 66°F | Partly Sunny | 5 to 10 mph NE | 3% |
| Thursday Night | 54°F | Mostly Cloudy | 0 to 5 mph NE | 13% |
| Friday | 68°F | Partly Sunny | 0 to 5 mph NE | 13% |
| Friday Night | 55°F | Partly Cloudy | 0 to 5 mph NE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Bannockburn (42.192, -87.870). Updated through the day.
Growing snapshot for Bannockburn
Last spring frost
Apr 19
First fall frost
Oct 26
Growing season
190 days
Hardiness zone
6a
More local growing data for Bannockburn: nearby ZIP 60015 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Antioch
Beach Park
Buffalo Grove
Burtons Bridge
Deer Park
Deerfield
Forest Lake
Fox Lake
Fox Lake Hills
Gages Lake
Grandwood Park
Grayslake
Green Oaks
Gurnee
Hainesville
Hawthorn Woods
Highland Park
Highwood
Holiday Hills
Indian Creek
Island Lake
Kildeer
Knollwood
Lake Bluff
Lake Forest
Lake Villa
Lake Zurich
Libertyville
Lincolnshire
Lindenhurst
Climate data from the nearest NOAA station, Chicago Palwaukee Ap, Il (3.9 mi from Bannockburn). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.