Eldorado, IL Weather & Growing Conditions
Today
87°F
Sunny
Sunny. High near 87, with temperatures falling to around 85 in the afternoon. East northeast wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Sunny | 3 mph ENE | 0% |
| Tonight | 63°F | Mostly Clear | 2 mph ENE | 0% |
| Wednesday | 89°F | Sunny | 1 mph S | 0% |
| Wednesday Night | 68°F | Mostly Clear | 1 mph SSE | 2% |
| Thursday | 89°F | Slight Chance Rain Showers | 1 to 6 mph SSW | 21% |
| Thursday Night | 70°F | Chance Showers And Thunderstorms | 1 to 5 mph S | 50% |
| Friday | 89°F | Chance Showers And Thunderstorms | 1 to 5 mph SW | 50% |
| Friday Night | 69°F | Chance Showers And Thunderstorms | 2 mph SSW | 31% |
| Saturday | 89°F | Chance Showers And Thunderstorms | 1 to 5 mph SSW | 31% |
| Saturday Night | 70°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 mph S | 21% |
| Sunday | 91°F | Sunny | 2 to 7 mph SSW | 8% |
| Sunday Night | 72°F | Mostly Clear | 3 to 7 mph SSW | 5% |
| Monday | 93°F | Sunny | 3 to 9 mph SSW | 5% |
| Monday Night | 73°F | Mostly Clear | 7 mph SSW | 9% |
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 Aug 4, 2026.