Sibley, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sibley, a village in Ford County, Illinois.
Today
83°F
Mostly Sunny
Mostly sunny, with a high near 83. South southwest wind 5 to 10 mph.
7-day forecast for Sibley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Mostly Sunny | 5 to 10 mph SSW | 0% |
| Tonight | 64°F | Partly Cloudy | 5 mph S | 1% |
| Wednesday | 83°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 5 mph SSW | 24% |
| Wednesday Night | 66°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 mph WSW | 84% |
| Thursday | 81°F | Showers And Thunderstorms | 5 mph SSW | 84% |
| Thursday Night | 63°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 32% |
| Friday | 82°F | Partly Sunny | 0 mph | 13% |
| Friday Night | 64°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph S | 23% |
| Saturday | 85°F | Mostly Sunny | 5 mph SSW | 13% |
| Saturday Night | 69°F | Mostly Clear | 5 to 10 mph SSW | 11% |
| Sunday | 87°F | Sunny | 10 mph SSW | 10% |
| Sunday Night | 71°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 10 mph SSW | 18% |
| Monday | 87°F | Slight Chance Showers And Thunderstorms | 10 mph SSW | 19% |
| Monday Night | 70°F | Slight Chance Showers And Thunderstorms | 10 mph SW | 30% |
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 Aug 4, 2026.