Highland Park, IL Weather & Growing Conditions
Tonight
60°F
Rain Showers Likely
Rain showers likely. Cloudy. Low around 60, with temperatures rising to around 62 overnight. South southeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 60°F | Rain Showers Likely | 15 mph SSE | 74% |
| Wednesday | 63°F | Rain Showers Likely | 15 mph SSW | 59% |
| Wednesday Night | 50°F | Slight Chance Rain Showers then Mostly Cloudy | 15 mph SW | 17% |
| Thursday | 56°F | Chance Rain Showers | 10 to 15 mph WSW | 32% |
| Thursday Night | 44°F | Rain Showers Likely | 10 to 15 mph NW | 63% |
| Friday | 51°F | Chance Rain Showers | 15 mph N | 39% |
| Friday Night | 41°F | Slight Chance Rain then Mostly Cloudy | 5 to 15 mph NNW | 16% |
| Saturday | 51°F | Mostly Sunny | 5 mph WNW | 10% |
| Saturday Night | 40°F | Partly Cloudy | 5 mph WSW | 7% |
| Sunday | 56°F | Mostly Sunny then Slight Chance Rain | 5 to 10 mph W | 17% |
| Sunday Night | 41°F | Mostly Clear | 5 to 10 mph WNW | 10% |
| Monday | 58°F | Mostly Sunny | 5 to 15 mph W | 6% |
| Monday Night | 45°F | Mostly Clear | 10 mph W | 3% |
| Tuesday | 58°F | Mostly Sunny | 5 to 10 mph WNW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Highland Park, IL
Last spring frost
Apr 26
First fall frost
Oct 21
Growing season
176 days
Hardiness zone
6a
Explore more for Highland Park, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Chicago Botanic Garden, Il (3.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.