Chicago, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Chicago, a city in Cook County, Illinois.
Today
85°F
Mostly Sunny
Mostly sunny, with a high near 85. South wind 5 to 10 mph.
7-day forecast for Chicago
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Mostly Sunny | 5 to 10 mph S | 1% |
| Tonight | 69°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 5 mph SSW | 15% |
| Wednesday | 81°F | Slight Chance Showers And Thunderstorms | 5 mph SW | 61% |
| Wednesday Night | 67°F | Showers And Thunderstorms | 5 mph WSW | 91% |
| Thursday | 77°F | Rain Showers | 0 to 5 mph NNE | 78% |
| Thursday Night | 65°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SE | 31% |
| Friday | 81°F | Mostly Sunny | 0 to 5 mph SSE | 5% |
| Friday Night | 67°F | Mostly Clear | 0 to 5 mph SSE | 9% |
| Saturday | 85°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 15% |
| Saturday Night | 71°F | Slight Chance Showers And Thunderstorms | 5 mph SSW | 18% |
| Sunday | 87°F | Slight Chance Showers And Thunderstorms | 5 to 15 mph SW | 18% |
| Sunday Night | 71°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 10 mph SW | 44% |
| Monday | 86°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 44% |
| Monday Night | 70°F | Chance Showers And Thunderstorms | 5 to 10 mph WSW | 48% |
Forecast source: National Weather Service (api.weather.gov) for Chicago (41.837, -87.685). Updated through the day.
Growing snapshot for Chicago
Last spring frost
Apr 10
First fall frost
Nov 5
Growing season
208 days
Hardiness zone
6a
More local growing data for Chicago: nearby ZIP 60608 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Alsip
Arbury Hills
Arlington Heights
Barrington
Barrington Hills
Bedford Park
Bellwood
Berkeley
Berwyn
Blue Island
Bridgeview
Broadview
Brookfield
Burbank
Burnham
Calumet City
Calumet Park
Chicago Heights
Chicago Ridge
Cicero
Country Club Hills
Countryside
Crestwood
Crete
Des Plaines
Dixmoor
Dolton
East Hazel Crest
Elk Grove Village
Elmwood Park
Climate data from the nearest NOAA station, Chicago Northerly Is, Il (3.2 mi from Chicago). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.