Forest Park, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Forest Park, a village in Cook County, Illinois.
Today
85°F
Mostly Sunny
Mostly sunny, with a high near 85. South southwest wind 5 to 10 mph.
7-day forecast for Forest Park
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Mostly Sunny | 5 to 10 mph SSW | 2% |
| Tonight | 69°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 5 mph SSW | 20% |
| Wednesday | 81°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 5 mph SW | 67% |
| Wednesday Night | 66°F | Showers And Thunderstorms | 5 mph W | 90% |
| Thursday | 78°F | Rain Showers Likely | 0 to 5 mph NE | 73% |
| Thursday Night | 64°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SE | 29% |
| Friday | 82°F | Mostly Sunny | 0 to 5 mph S | 4% |
| Friday Night | 66°F | Mostly Clear | 0 to 5 mph S | 8% |
| Saturday | 85°F | Mostly Sunny | 5 to 10 mph SW | 9% |
| Saturday Night | 71°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 18% |
| Sunday | 86°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 10 to 15 mph SW | 18% |
| Sunday Night | 72°F | Chance Showers And Thunderstorms | 5 to 10 mph SSW | 43% |
| Monday | 86°F | Chance Showers And Thunderstorms | 5 to 10 mph SSW | 43% |
| Monday Night | 71°F | Chance Showers And Thunderstorms | 5 to 10 mph WSW | 47% |
Forecast source: National Weather Service (api.weather.gov) for Forest Park (41.868, -87.816). Updated through the day.
Growing snapshot for Forest Park
Last spring frost
Apr 11
First fall frost
Oct 31
Growing season
201 days
Hardiness zone
6a
More local growing data for Forest Park: nearby ZIP 60130 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
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Chicago
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Country Club Hills
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Climate data from the nearest NOAA station, Chicago Midway Ap, Il (6.5 mi from Forest Park). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.