Harman US

Homer, IL Weather & Growing Conditions

This Afternoon
86°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy, with a high near 86. Northeast wind around 6 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 86°F Chance Showers And Thunderstorms 6 mph NE 53%
Tonight 68°F Mostly Cloudy 6 mph S 13%
Sunday 83°F Partly Sunny then Chance Showers And Thunderstorms 5 to 12 mph N 40%
Sunday Night 59°F Chance Showers And Thunderstorms 13 mph NE 39%
Monday 70°F Showers And Thunderstorms Likely 14 mph NE 64%
Monday Night 54°F Chance Rain Showers 9 to 14 mph ENE 47%
Tuesday 68°F Chance Rain Showers 14 mph NE 44%
Tuesday Night 53°F Slight Chance Rain Showers then Mostly Cloudy 6 to 14 mph NNE 18%
Wednesday 69°F Partly Sunny 7 to 10 mph NNE 11%
Wednesday Night 54°F Partly Cloudy 3 to 10 mph N 2%
Thursday 72°F Partly Sunny 7 mph NNE 2%
Thursday Night 55°F Mostly Cloudy 6 mph NNE 6%
Friday 75°F Partly Sunny 7 mph NNE 6%
Friday Night 54°F Partly Cloudy 6 mph NE 4%

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

Growing snapshot for Homer, IL

Last spring frost
Apr 20
First fall frost
Oct 21
Growing season
182 days
Hardiness zone
6a

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

Climate data from the nearest NOAA station, Ogden, Il (6.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.