Antioch, IL Weather & Growing Conditions
Tonight
60°F
Showers And Thunderstorms Likely
A slight chance of rain showers before 11pm, then showers and thunderstorms likely between 11pm and 5am, then showers and thunderstorms. Some of the storms could produce heavy rain. Mostly cloudy, with a low around 60. East wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 60°F | Showers And Thunderstorms Likely | 10 to 15 mph E | 82% |
| Saturday | 75°F | Showers And Thunderstorms then Showers And Thunderstorms Likely | 10 to 15 mph ESE | 97% |
| Saturday Night | 61°F | Showers And Thunderstorms Likely then Showers And Thunderstorms | 5 to 10 mph NE | 77% |
| Sunday | 66°F | Showers And Thunderstorms Likely | 15 to 20 mph NE | 68% |
| Sunday Night | 54°F | Chance Rain Showers | 15 to 20 mph NE | 39% |
| Monday | 64°F | Chance Rain Showers | 15 to 20 mph ENE | 35% |
| Monday Night | 50°F | Chance Rain Showers | 10 to 15 mph ENE | 35% |
| Tuesday | 62°F | Slight Chance Rain Showers | 10 to 15 mph NE | 20% |
| Tuesday Night | 50°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NE | 16% |
| Wednesday | 64°F | Partly Sunny | 5 to 10 mph NE | 11% |
| Wednesday Night | 50°F | Mostly Cloudy | 0 to 5 mph NNE | 5% |
| Thursday | 67°F | Partly Sunny | 0 to 5 mph NNE | 5% |
| Thursday Night | 51°F | Mostly Cloudy | 0 to 5 mph N | 4% |
| Friday | 69°F | Mostly Sunny | 0 to 5 mph NNE | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Antioch, IL
Last spring frost
Apr 23
First fall frost
Oct 21
Growing season
179 days
Hardiness zone
5b
Explore more for Antioch, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Antioch, Il (1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.