Calumet City, IL Weather & Growing Conditions
Overnight
63°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Cloudy. Low around 63, with temperatures rising to around 65 overnight. East southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 63°F | Showers And Thunderstorms Likely | 10 mph ESE | 59% |
| Saturday | 77°F | Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 to 10 mph SE | 100% |
| Saturday Night | 65°F | Showers And Thunderstorms | 5 to 10 mph SSW | 95% |
| Sunday | 70°F | Showers And Thunderstorms Likely | 10 to 15 mph NNE | 64% |
| Sunday Night | 57°F | Chance Rain Showers | 15 mph NE | 37% |
| Monday | 65°F | Chance Rain Showers | 15 mph ENE | 33% |
| Monday Night | 54°F | Slight Chance Rain Showers then Mostly Cloudy | 10 to 15 mph ENE | 19% |
| Tuesday | 64°F | Slight Chance Rain Showers | 10 to 15 mph NE | 16% |
| Tuesday Night | 54°F | Mostly Cloudy | 10 to 15 mph NE | 13% |
| Wednesday | 65°F | Partly Sunny | 10 mph NE | 13% |
| Wednesday Night | 54°F | Mostly Cloudy | 5 to 10 mph NNE | 6% |
| Thursday | 66°F | Partly Sunny | 5 to 10 mph NNE | 3% |
| Thursday Night | 55°F | Mostly Cloudy | 5 mph NE | 3% |
| Friday | 69°F | Mostly Sunny | 5 to 10 mph NE | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Calumet City, IL
Last spring frost
Apr 23
First fall frost
Oct 20
Growing season
179 days
Hardiness zone
6a
Explore more for Calumet City, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Park Forest, Il (10.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.