Long Grove, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Long Grove, a village in Lake County, Illinois.
Tonight
60°F
Rain Showers
Rain showers. Cloudy. Low around 60, with temperatures rising to around 62 overnight. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Long Grove
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 60°F | Rain Showers | 15 mph S | 81% |
| Wednesday | 64°F | Rain Showers Likely | 15 mph SSW | 61% |
| Wednesday Night | 48°F | Slight Chance Rain Showers then Mostly Cloudy | 15 mph SW | 18% |
| Thursday | 57°F | Chance Rain Showers | 10 to 15 mph WSW | 35% |
| Thursday Night | 42°F | Rain Showers Likely | 5 to 10 mph NW | 55% |
| Friday | 52°F | Chance Rain Showers | 10 to 15 mph N | 29% |
| Friday Night | 36°F | Mostly Cloudy | 5 mph NNW | 9% |
| Saturday | 52°F | Mostly Sunny | 0 to 5 mph WNW | 7% |
| Saturday Night | 35°F | Partly Cloudy | 0 to 5 mph WSW | 7% |
| Sunday | 57°F | Mostly Sunny then Slight Chance Rain | 5 to 10 mph W | 18% |
| Sunday Night | 36°F | Mostly Clear | 5 mph WNW | 8% |
| Monday | 60°F | Sunny | 5 to 10 mph WSW | 4% |
| Monday Night | 40°F | Mostly Clear | 5 to 10 mph W | 2% |
| Tuesday | 61°F | Mostly Sunny | 5 to 10 mph WNW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Long Grove (42.195, -88.011). Updated through the day.
Growing snapshot for Long Grove
Last spring frost
Apr 29
First fall frost
Oct 20
Growing season
172 days
Hardiness zone
5b
More local growing data for Long Grove: nearby ZIP 60047 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 (4 mi from Long Grove). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.