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Forest Park, IL Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Forest Park, a village in Cook County, Illinois.

This Afternoon
73°F
Chance Rain
A chance of rain. Mostly cloudy. High near 73, with temperatures falling to around 70 in the afternoon. South wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 40%.

7-day forecast for Forest Park

WhenTempForecastWindPrecip
This Afternoon 73°F Chance Rain 15 to 20 mph S 35%
Tonight 61°F Rain 15 mph S 79%
Wednesday 64°F Rain Likely 15 mph SSW 58%
Wednesday Night 50°F Mostly Cloudy 15 mph SW 13%
Thursday 58°F Chance Rain 10 to 15 mph WSW 27%
Thursday Night 45°F Chance Rain 5 to 10 mph WNW 50%
Friday 53°F Chance Rain 10 to 15 mph N 36%
Friday Night 40°F Mostly Cloudy 5 to 10 mph NNW 14%
Saturday 52°F Mostly Sunny 5 mph WNW 11%
Saturday Night 38°F Partly Cloudy 5 mph WSW 7%
Sunday 57°F Mostly Sunny then Slight Chance Rain 5 to 10 mph W 15%
Sunday Night 40°F Mostly Clear 5 to 10 mph WNW 10%
Monday 60°F Sunny 5 to 10 mph WSW 5%
Monday Night 44°F Mostly Clear 5 to 10 mph W 2%

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

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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 Nov 3, 2026.