Harman US

Homer Glen, IL Weather & Growing Conditions

Today
77°F
Showers And Thunderstorms
Showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Cloudy, with a high near 77. Southeast wind 5 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Today 77°F Showers And Thunderstorms 5 to 10 mph SE 100%
Tonight 64°F Showers And Thunderstorms 5 to 10 mph SSE 95%
Sunday 70°F Showers And Thunderstorms Likely 10 to 15 mph NNE 65%
Sunday Night 56°F Chance Showers And Thunderstorms 15 mph NE 39%
Monday 64°F Chance Rain Showers 15 mph NE 34%
Monday Night 52°F Chance Rain Showers then Mostly Cloudy 15 mph NE 25%
Tuesday 62°F Slight Chance Rain Showers 15 mph NE 18%
Tuesday Night 52°F Mostly Cloudy 10 to 15 mph NE 10%
Wednesday 65°F Partly Sunny 10 to 15 mph NNE 11%
Wednesday Night 53°F Mostly Cloudy 5 to 10 mph NNE 4%
Thursday 67°F Partly Sunny 5 to 10 mph NNE 3%
Thursday Night 53°F Mostly Cloudy 5 to 10 mph NNE 3%
Friday 70°F Mostly Sunny 5 to 10 mph NE 3%
Friday Night 54°F Partly Cloudy 5 to 10 mph ENE 3%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Homer Glen, IL

Last spring frost
Apr 20
First fall frost
Oct 22
Growing season
184 days
Hardiness zone
6a

Explore more for Homer Glen, IL: full frost dates · planting calendar · Illinois frost dates

Climate data from the nearest NOAA station, Romeoville Wfo, Il (6.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.