Sibley, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sibley, a village in Ford County, Illinois.
This Afternoon
78°F
Chance Rain Showers
A chance of rain showers before 5pm. Partly sunny, with a high near 78. East northeast wind around 10 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Sibley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 78°F | Chance Rain Showers | 10 mph ENE | 35% |
| Tonight | 65°F | Partly Cloudy | 10 mph ESE | 11% |
| Saturday | 85°F | Chance Showers And Thunderstorms | 5 to 10 mph SSE | 40% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 5 mph SW | 55% |
| Sunday | 77°F | Showers And Thunderstorms Likely | 5 to 15 mph NNE | 68% |
| Sunday Night | 57°F | Showers And Thunderstorms Likely | 10 to 15 mph NE | 66% |
| Monday | 67°F | Showers And Thunderstorms Likely | 10 to 15 mph ENE | 68% |
| Monday Night | 52°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 44% |
| Tuesday | 66°F | Chance Rain Showers | 10 to 15 mph NE | 25% |
| Tuesday Night | 50°F | Mostly Cloudy | 5 to 10 mph NNE | 9% |
| Wednesday | 68°F | Partly Sunny | 5 to 10 mph NNE | 5% |
| Wednesday Night | 51°F | Partly Cloudy | 5 to 10 mph NNE | 5% |
| Thursday | 71°F | Mostly Sunny | 5 to 10 mph NNE | 3% |
| Thursday Night | 53°F | Partly Cloudy | 5 mph NNE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Sibley (40.588, -88.378). Updated through the day.
Growing snapshot for Sibley
Last spring frost
Apr 21
First fall frost
Oct 17
Growing season
178 days
Hardiness zone
6a
More local growing data for Sibley: nearby ZIP 61773 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Gibson City, Il (6.5 mi from Sibley). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.