Harman US

Oak Park, IL Weather & Growing Conditions

Tonight
62°F
Mostly Cloudy then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 62. East southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Tonight 62°F Mostly Cloudy then Chance Showers And Thunderstorms 10 mph ESE 48%
Saturday 76°F Showers And Thunderstorms Likely 5 to 10 mph SE 86%
Saturday Night 65°F Showers And Thunderstorms Likely then Showers And Thunderstorms 5 to 10 mph ENE 81%
Sunday 68°F Showers And Thunderstorms 10 to 15 mph NNE 81%
Sunday Night 57°F Rain Showers Likely 15 mph NE 58%
Monday 64°F Chance Rain Showers 15 mph ENE 51%
Monday Night 55°F Chance Rain Showers 10 to 15 mph ENE 32%
Tuesday 63°F Slight Chance Rain Showers 15 mph NE 23%
Tuesday Night 55°F Slight Chance Rain Showers then Mostly Cloudy 5 to 15 mph NE 19%
Wednesday 65°F Mostly Cloudy 5 to 10 mph NE 12%
Wednesday Night 55°F Mostly Cloudy 5 to 10 mph NE 3%
Thursday 67°F Partly Sunny 5 to 10 mph NNE 7%
Thursday Night 56°F Mostly Cloudy 5 mph NNE 4%
Friday 69°F Mostly Sunny 5 to 10 mph NE 5%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Oak Park, IL

Last spring frost
Apr 11
First fall frost
Oct 31
Growing season
201 days

Explore more for Oak Park, IL: full frost dates · planting calendar · Illinois frost dates

Climate data from the nearest NOAA station, Chicago Midway Ap, Il (7.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.