Lake Bluff, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lake Bluff, a village in Lake County, Illinois.
Tonight
61°F
Isolated Rain Showers then Showers And Thunderstorms Likely
Isolated rain showers before 8pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 61. East wind 15 to 20 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast for Lake Bluff
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 61°F | Isolated Rain Showers then Showers And Thunderstorms Likely | 15 to 20 mph E | 66% |
| Saturday | 74°F | Showers And Thunderstorms then Showers And Thunderstorms Likely | 10 to 20 mph SE | 95% |
| Saturday Night | 62°F | Showers And Thunderstorms Likely then Showers And Thunderstorms | 10 to 15 mph ENE | 80% |
| Sunday | 67°F | Showers And Thunderstorms Likely | 15 to 20 mph NNE | 73% |
| Sunday Night | 55°F | Chance Rain Showers | 20 mph NE | 45% |
| Monday | 65°F | Chance Rain Showers | 20 to 25 mph ENE | 41% |
| Monday Night | 53°F | Chance Rain Showers | 15 to 20 mph ENE | 33% |
| Tuesday | 62°F | Slight Chance Rain Showers | 15 mph NE | 21% |
| Tuesday Night | 54°F | Slight Chance Rain Showers then Mostly Cloudy | 10 to 15 mph NE | 19% |
| Wednesday | 64°F | Mostly Cloudy | 10 mph NE | 12% |
| Wednesday Night | 54°F | Mostly Cloudy | 5 to 10 mph NNE | 4% |
| Thursday | 66°F | Partly Sunny | 5 to 10 mph NNE | 6% |
| Thursday Night | 55°F | Mostly Cloudy | 5 mph NNE | 5% |
| Friday | 68°F | Mostly Sunny | 5 mph NNE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Lake Bluff (42.283, -87.852). Updated through the day.
Growing snapshot for Lake Bluff
Last spring frost
Apr 30
First fall frost
Oct 19
Growing season
170 days
Hardiness zone
6a
More local growing data for Lake Bluff: nearby ZIP 60044 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Waukegan, Il (4.4 mi from Lake Bluff). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.