Third Lake, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Third Lake, a village in Lake County, Illinois.
Today
84°F
Mostly Sunny
Mostly sunny, with a high near 84. South southwest wind 5 to 10 mph, with gusts as high as 20 mph.
7-day forecast for Third Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Mostly Sunny | 5 to 10 mph SSW | 0% |
| Tonight | 67°F | Mostly Cloudy then Chance Showers And Thunderstorms | 5 to 10 mph SW | 47% |
| Wednesday | 78°F | Showers And Thunderstorms Likely | 0 to 5 mph WSW | 74% |
| Wednesday Night | 62°F | Showers And Thunderstorms | 0 to 5 mph NW | 79% |
| Thursday | 78°F | Chance Rain Showers | 0 to 5 mph NNE | 51% |
| Thursday Night | 60°F | Partly Cloudy | 0 to 5 mph NNE | 13% |
| Friday | 81°F | Mostly Sunny | 0 to 5 mph SW | 3% |
| Friday Night | 62°F | Mostly Clear | 0 to 5 mph S | 8% |
| Saturday | 84°F | Mostly Sunny | 5 mph SW | 11% |
| Saturday Night | 68°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 mph SW | 22% |
| Sunday | 85°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 22% |
| Sunday Night | 67°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 10 mph WSW | 46% |
| Monday | 83°F | Chance Rain Showers | 5 mph SSW | 46% |
| Monday Night | 67°F | Chance Showers And Thunderstorms | 5 mph W | 47% |
Forecast source: National Weather Service (api.weather.gov) for Third Lake (42.370, -88.009). Updated through the day.
Growing snapshot for Third Lake
Last spring frost
Apr 29
First fall frost
Oct 20
Growing season
172 days
Hardiness zone
5b
More local growing data for Third Lake: nearby ZIP 60030 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Antioch
Bannockburn
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
Climate data from the nearest NOAA station, Mundelein 4 Wsw, Il (5.8 mi from Third Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.