Congerville, IL Weather & Growing Conditions
Overnight
67°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 67. Southeast wind around 9 mph, with gusts as high as 17 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 67°F | Slight Chance Showers And Thunderstorms | 9 mph SE | 17% |
| Saturday | 86°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 10 mph SSE | 26% |
| Saturday Night | 68°F | Showers And Thunderstorms Likely | 8 mph ESE | 56% |
| Sunday | 77°F | Rain Showers Likely | 3 to 14 mph NE | 68% |
| Sunday Night | 57°F | Showers And Thunderstorms Likely | 12 to 15 mph NE | 68% |
| Monday | 67°F | Showers And Thunderstorms Likely | 16 mph ENE | 68% |
| Monday Night | 52°F | Chance Showers And Thunderstorms | 13 to 16 mph NE | 49% |
| Tuesday | 65°F | Chance Rain Showers | 14 mph NE | 27% |
| Tuesday Night | 50°F | Mostly Cloudy | 6 to 14 mph NNE | 6% |
| Wednesday | 68°F | Partly Sunny | 10 mph NNE | 5% |
| Wednesday Night | 52°F | Partly Cloudy | 3 to 9 mph NNE | 4% |
| Thursday | 70°F | Mostly Sunny | 5 to 8 mph NNE | 2% |
| Thursday Night | 53°F | Partly Cloudy | 3 to 7 mph NNE | 3% |
| Friday | 72°F | Mostly Sunny | 5 to 8 mph NNE | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Congerville, IL
Last spring frost
Apr 21
First fall frost
Oct 17
Growing season
178 days
Hardiness zone
5b
Explore more for Congerville, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Congerville 2Nw, Il (1.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.