Highland Park, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Highland Park, a city in Lake County, Illinois.
Today
63°F
Slight Chance Drizzle then Slight Chance Rain Showers
A slight chance of drizzle before 2pm, then a slight chance of rain showers and a slight chance of drizzle. Mostly cloudy. High near 63, with temperatures falling to around 56 in the afternoon. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Highland Park
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 63°F | Slight Chance Drizzle then Slight Chance Rain Showers | 15 mph SW | 17% |
| Tonight | 48°F | Slight Chance Rain Showers then Slight Chance Rain | 15 mph SW | 15% |
| Thursday | 54°F | Rain Likely | 10 to 15 mph W | 64% |
| Thursday Night | 41°F | Rain Likely then Cloudy | 10 to 15 mph NNW | 58% |
| Friday | 49°F | Partly Sunny | 15 mph NNW | 8% |
| Friday Night | 37°F | Mostly Cloudy | 10 to 15 mph NNW | 2% |
| Saturday | 51°F | Mostly Sunny | 5 to 10 mph NW | 1% |
| Saturday Night | 39°F | Partly Cloudy | 5 mph W | 0% |
| Sunday | 54°F | Sunny | 10 mph W | 6% |
| Sunday Night | 40°F | Mostly Clear | 5 to 10 mph W | 1% |
| Monday | 58°F | Mostly Sunny | 5 to 10 mph WSW | 0% |
| Monday Night | 44°F | Partly Cloudy | 5 to 10 mph WSW | 1% |
| Tuesday | 58°F | Sunny | 5 mph WNW | 0% |
| Tuesday Night | 44°F | Partly Cloudy | 5 mph NW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Highland Park (42.182, -87.811). Updated through the day.
Growing snapshot for Highland Park
Last spring frost
Apr 26
First fall frost
Oct 21
Growing season
176 days
Hardiness zone
6a
More local growing data for Highland Park: nearby ZIP 60035 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
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Lindenhurst
Climate data from the nearest NOAA station, Chicago Botanic Garden, Il (3.3 mi from Highland Park). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.