Harman US

Chicago, IL Weather & Growing Conditions

This Afternoon
71°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Cloudy, with a high near 71. East northeast wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 71°F Chance Showers And Thunderstorms 5 mph ENE 50%
Tonight 66°F Chance Showers And Thunderstorms then Showers And Thunderstorms 5 mph SSE 100%
Sunday 68°F Showers And Thunderstorms 5 to 15 mph NNE 84%
Sunday Night 58°F Chance Rain Showers 15 mph ENE 35%
Monday 65°F Chance Rain Showers 15 mph ENE 39%
Monday Night 56°F Chance Rain Showers 10 to 15 mph ENE 28%
Tuesday 63°F Chance Rain Showers 10 to 15 mph NE 28%
Tuesday Night 55°F Slight Chance Rain Showers then Mostly Cloudy 10 to 15 mph NE 23%
Wednesday 64°F Mostly Cloudy 10 mph NE 14%
Wednesday Night 56°F Mostly Cloudy 5 to 10 mph NE 7%
Thursday 66°F Partly Sunny 5 to 10 mph NE 2%
Thursday Night 57°F Mostly Cloudy 0 to 5 mph NE 9%
Friday 70°F Partly Sunny 0 to 10 mph NE 9%
Friday Night 58°F Partly Cloudy 0 to 5 mph NE 2%

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

Growing snapshot for Chicago, IL

Last spring frost
Apr 10
First fall frost
Nov 1
Growing season
203 days
Hardiness zone
6a

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

Climate data from the nearest NOAA station, Chicago Midway Ap 3Sw, Il (4.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.