Eldorado, IL Weather & Growing Conditions
This Afternoon
78°F
Partly Sunny
Partly sunny. High near 78, with temperatures falling to around 76 in the afternoon. South wind around 14 mph, with gusts as high as 25 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 78°F | Partly Sunny | 14 mph S | 14% |
| Tonight | 57°F | Showers And Thunderstorms | 7 to 15 mph S | 98% |
| Wednesday | 68°F | Partly Sunny | 6 to 12 mph SW | 11% |
| Wednesday Night | 44°F | Partly Cloudy | 3 mph WSW | 0% |
| Thursday | 68°F | Sunny | 2 to 9 mph SW | 0% |
| Thursday Night | 44°F | Partly Cloudy | 2 mph W | 5% |
| Friday | 61°F | Partly Sunny | 2 to 10 mph NNW | 5% |
| Friday Night | 39°F | Mostly Cloudy | 2 to 7 mph NNW | 1% |
| Saturday | 57°F | Mostly Sunny | 5 mph NNW | 0% |
| Saturday Night | 35°F | Partly Cloudy | 1 mph NNW | 1% |
| Sunday | 61°F | Sunny | 0 to 7 mph WNW | 6% |
| Sunday Night | 34°F | Mostly Clear | 3 mph NW | 6% |
| Monday | 64°F | Sunny | 1 to 8 mph WNW | 2% |
| Monday Night | 38°F | Mostly Clear | 5 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Eldorado, IL
Last spring frost
Apr 7
First fall frost
Oct 26
Growing season
202 days
Hardiness zone
7a
Explore more for Eldorado, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Harrisburg, Il (8.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.