Harman US

Congerville, IL Weather & Growing Conditions

Today
86°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 1pm. Cloudy, with a high near 86. Southeast wind around 8 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Today 86°F Chance Showers And Thunderstorms 8 mph SE 42%
Tonight 68°F Chance Showers And Thunderstorms 3 to 7 mph SSW 55%
Sunday 75°F Showers And Thunderstorms Likely 3 to 15 mph N 70%
Sunday Night 57°F Showers And Thunderstorms Likely then Chance Showers And Thunderstorms 15 mph NE 59%
Monday 66°F Showers And Thunderstorms Likely 17 mph ENE 65%
Monday Night 52°F Chance Rain Showers 12 to 17 mph NE 47%
Tuesday 64°F Slight Chance Rain Showers 15 mph NE 21%
Tuesday Night 50°F Slight Chance Rain Showers then Partly Cloudy 7 to 15 mph NNE 17%
Wednesday 68°F Mostly Sunny 12 mph NNE 4%
Wednesday Night 52°F Partly Cloudy 5 to 10 mph NNE 2%
Thursday 70°F Partly Sunny 6 to 9 mph NNE 2%
Thursday Night 53°F Partly Cloudy 3 to 8 mph NE 2%
Friday 73°F Mostly Sunny 5 to 9 mph NE 3%
Friday Night 53°F Partly Cloudy 3 to 7 mph NE 3%

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.