Cerro Gordo, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cerro Gordo, a village in Piatt County, Illinois.
Today
89°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms between 10am and 1pm. Mostly cloudy, with a high near 89. South wind around 8 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Cerro Gordo
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 89°F | Slight Chance Showers And Thunderstorms | 8 mph S | 22% |
| Tonight | 69°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 8 mph SSW | 19% |
| Sunday | 82°F | Chance Showers And Thunderstorms | 5 to 13 mph N | 51% |
| Sunday Night | 59°F | Chance Showers And Thunderstorms | 16 mph NE | 60% |
| Monday | 68°F | Showers And Thunderstorms Likely | 18 mph NE | 70% |
| Monday Night | 53°F | Chance Rain Showers | 17 mph NE | 48% |
| Tuesday | 66°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 18 mph NE | 22% |
| Tuesday Night | 51°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 9 to 16 mph NNE | 22% |
| Wednesday | 69°F | Mostly Sunny | 14 mph NNE | 4% |
| Wednesday Night | 52°F | Partly Cloudy | 7 to 13 mph NNE | 3% |
| Thursday | 71°F | Mostly Sunny | 8 to 12 mph NNE | 3% |
| Thursday Night | 54°F | Partly Cloudy | 6 to 12 mph NNE | 3% |
| Friday | 74°F | Mostly Sunny | 7 to 12 mph NE | 2% |
| Friday Night | 53°F | Partly Cloudy | 6 to 10 mph NE | 2% |
Forecast source: National Weather Service (api.weather.gov) for Cerro Gordo (39.889, -88.734). Updated through the day.
Growing snapshot for Cerro Gordo
Last spring frost
Apr 16
First fall frost
Oct 22
Growing season
187 days
Hardiness zone
6a
More local growing data for Cerro Gordo: nearby ZIP 61818 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Decatur Ap, Il (8.7 mi from Cerro Gordo). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.