Chicago, IL Weather & Growing Conditions
Today
85°F
Mostly Sunny
Mostly sunny, with a high near 85. South southwest wind around 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Mostly Sunny | 10 mph SSW | 1% |
| Tonight | 69°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 5 mph SSW | 23% |
| Wednesday | 80°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 5 mph WSW | 69% |
| Wednesday Night | 66°F | Showers And Thunderstorms | 0 to 5 mph WNW | 90% |
| Thursday | 78°F | Rain Showers Likely | 0 to 5 mph N | 70% |
| Thursday Night | 64°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SSE | 26% |
| Friday | 82°F | Mostly Sunny | 0 to 5 mph SSE | 4% |
| Friday Night | 66°F | Mostly Clear | 0 to 5 mph SSE | 8% |
| Saturday | 85°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 15% |
| Saturday Night | 70°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 20% |
| Sunday | 86°F | Slight Chance Showers And Thunderstorms | 5 to 15 mph SW | 20% |
| Sunday Night | 70°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 44% |
| Monday | 86°F | Chance Showers And Thunderstorms | 5 to 10 mph SSW | 44% |
| Monday Night | 70°F | Chance Showers And Thunderstorms | 5 to 10 mph WSW | 48% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Chicago, IL
Last spring frost
Apr 16
First fall frost
Oct 28
Growing season
193 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 Ohare Intl Ap, Il (7.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.