Macon, IL Weather & Growing Conditions
Overnight
56°F
Light Rain
Rain. Mostly cloudy, with a low around 56. South wind 14 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 56°F | Light Rain | 14 to 18 mph S | 78% |
| Wednesday | 61°F | Mostly Cloudy | 12 to 15 mph SW | 11% |
| Wednesday Night | 46°F | Mostly Cloudy | 12 mph WSW | 3% |
| Thursday | 61°F | Partly Sunny | 12 to 15 mph WSW | 8% |
| Thursday Night | 43°F | Mostly Cloudy | 5 to 9 mph NW | 2% |
| Friday | 53°F | Partly Sunny | 13 mph NNW | 7% |
| Friday Night | 33°F | Partly Cloudy | 3 to 9 mph NNW | 0% |
| Saturday | 53°F | Mostly Sunny | 3 to 7 mph NNW | 0% |
| Saturday Night | 32°F | Partly Cloudy | 3 mph NW | 0% |
| Sunday | 58°F | Sunny | 2 to 9 mph WNW | 1% |
| Sunday Night | 33°F | Clear | 5 mph W | 1% |
| Monday | 63°F | Sunny | 2 to 8 mph SW | 0% |
| Monday Night | 39°F | Clear | 5 mph SW | 0% |
| Tuesday | 66°F | Sunny | 6 mph WNW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Macon, IL
Last spring frost
Apr 14
First fall frost
Oct 24
Growing season
192 days
Hardiness zone
6a
Explore more for Macon, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Decatur Wtp, Il (8.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.