Chicago, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Chicago, a city in Cook County, Illinois.
This Afternoon
72°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Cloudy. High near 72, with temperatures falling to around 70 in the afternoon. East northeast wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Chicago
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Showers And Thunderstorms Likely | 5 mph ENE | 70% |
| Tonight | 65°F | Showers And Thunderstorms | 5 mph S | 100% |
| Sunday | 68°F | Showers And Thunderstorms | 10 to 20 mph NNE | 87% |
| Sunday Night | 58°F | Chance Rain Showers then Mostly Cloudy | 15 mph ENE | 28% |
| Monday | 65°F | Chance Rain Showers | 15 mph ENE | 36% |
| Monday Night | 55°F | Chance Rain Showers | 10 to 15 mph ENE | 26% |
| Tuesday | 64°F | Slight Chance Rain Showers | 10 to 15 mph NE | 23% |
| Tuesday Night | 56°F | Slight Chance Rain Showers then Mostly Cloudy | 10 to 15 mph NE | 22% |
| Wednesday | 64°F | Mostly Cloudy | 10 mph NE | 14% |
| Wednesday Night | 56°F | Mostly Cloudy | 5 to 10 mph NE | 8% |
| Thursday | 66°F | Partly Sunny | 5 to 10 mph NE | 2% |
| Thursday Night | 57°F | Mostly Cloudy | 5 mph NE | 11% |
| Friday | 69°F | Partly Sunny | 5 to 10 mph NE | 11% |
| Friday Night | 58°F | Partly Cloudy | 0 to 5 mph NE | 2% |
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
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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 Sep 20, 2026.