Harman US

Atlanta, IL Weather & Growing Conditions

Tonight
54°F
Rain
Rain before 3am, then a chance of rain showers. Cloudy, with a low around 54. South wind 14 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
Tonight 54°F Rain 14 to 18 mph S 95%
Wednesday 60°F Slight Chance Rain Showers then Mostly Cloudy 16 mph SW 17%
Wednesday Night 46°F Mostly Cloudy 13 mph SW 1%
Thursday 60°F Mostly Sunny 10 to 15 mph WSW 6%
Thursday Night 43°F Mostly Cloudy then Slight Chance Light Rain 6 to 9 mph NW 23%
Friday 55°F Slight Chance Light Rain then Mostly Cloudy 8 to 12 mph NNW 16%
Friday Night 36°F Partly Cloudy 3 to 10 mph N 6%
Saturday 54°F Mostly Sunny 6 mph WNW 2%
Saturday Night 34°F Partly Cloudy 3 mph W 3%
Sunday 60°F Sunny 3 to 10 mph WNW 12%
Sunday Night 35°F Mostly Clear 5 to 8 mph W 6%
Monday 64°F Sunny 5 to 12 mph SW 2%
Monday Night 40°F Mostly Clear 5 to 9 mph WSW 2%
Tuesday 66°F Sunny 5 to 8 mph W 1%

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

Growing snapshot for Atlanta, IL

Last spring frost
Apr 20
First fall frost
Oct 16
Growing season
179 days
Hardiness zone
6a

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

Climate data from the nearest NOAA station, Lincoln, Il (8.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.