Chicago, IL Weather & Growing Conditions
Today
77°F
Showers And Thunderstorms
Showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Cloudy. High near 77, with temperatures falling to around 74 in the afternoon. South southeast wind 5 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 77°F | Showers And Thunderstorms | 5 to 10 mph SSE | 95% |
| Tonight | 65°F | Showers And Thunderstorms | 5 to 10 mph SSE | 95% |
| Sunday | 70°F | Showers And Thunderstorms Likely | 10 to 15 mph NNE | 65% |
| Sunday Night | 58°F | Chance Rain Showers | 15 mph NE | 34% |
| Monday | 65°F | Chance Rain Showers | 15 mph ENE | 28% |
| Monday Night | 55°F | Slight Chance Rain Showers then Mostly Cloudy | 10 to 15 mph ENE | 18% |
| Tuesday | 63°F | Slight Chance Rain Showers | 15 mph NE | 17% |
| Tuesday Night | 55°F | Mostly Cloudy | 10 to 15 mph NE | 12% |
| Wednesday | 64°F | Partly Sunny | 10 to 15 mph NE | 14% |
| Wednesday Night | 55°F | Mostly Cloudy | 5 to 10 mph NNE | 6% |
| Thursday | 66°F | Partly Sunny | 5 to 10 mph NNE | 3% |
| Thursday Night | 56°F | Mostly Cloudy | 5 to 10 mph NNE | 3% |
| Friday | 70°F | Partly Sunny | 5 to 10 mph NNE | 3% |
| Friday Night | 56°F | Partly Cloudy | 5 to 10 mph NE | 4% |
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.