Park Forest, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Park Forest, a village in Cook County, Illinois.
Today
79°F
Showers And Thunderstorms
Showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Cloudy. High near 79, with temperatures falling to around 76 in the afternoon. South southeast wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast for Park Forest
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 79°F | Showers And Thunderstorms | 5 to 10 mph SSE | 79% |
| Tonight | 65°F | Showers And Thunderstorms Likely then Showers And Thunderstorms | 5 mph S | 92% |
| Sunday | 71°F | Showers And Thunderstorms Likely | 5 to 15 mph NNE | 64% |
| Sunday Night | 56°F | Chance Showers And Thunderstorms | 15 mph NE | 40% |
| Monday | 66°F | Chance Rain Showers | 15 mph NE | 41% |
| Monday Night | 53°F | Chance Rain Showers then Mostly Cloudy | 10 to 15 mph NE | 30% |
| Tuesday | 64°F | Slight Chance Rain Showers | 10 to 15 mph NE | 17% |
| Tuesday Night | 53°F | Mostly Cloudy | 10 to 15 mph NE | 12% |
| Wednesday | 66°F | Partly Sunny | 10 mph NE | 11% |
| Wednesday Night | 54°F | Mostly Cloudy | 5 to 10 mph NNE | 5% |
| Thursday | 68°F | Partly Sunny | 5 to 10 mph NNE | 3% |
| Thursday Night | 54°F | Mostly Cloudy | 5 to 10 mph NNE | 3% |
| Friday | 71°F | Mostly Sunny | 5 to 10 mph NNE | 3% |
| Friday Night | 54°F | Partly Cloudy | 0 to 10 mph NE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Park Forest (41.482, -87.687). Updated through the day.
Growing snapshot for Park Forest
Last spring frost
Apr 23
First fall frost
Oct 20
Growing season
179 days
Hardiness zone
6a
More local growing data for Park Forest: nearby ZIP 60466 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Park Forest, Il (1.1 mi from Park Forest). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.