Shelbyville, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Shelbyville, a city in Shelby County, Illinois.
This Afternoon
94°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly sunny, with a high near 94. Heat index values as high as 102. Northeast wind around 7 mph. Chance of precipitation is 30%.
7-day forecast for Shelbyville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 94°F | Chance Showers And Thunderstorms | 7 mph NE | 26% |
| Tonight | 70°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 7 mph ESE | 17% |
| Saturday | 92°F | Slight Chance Showers And Thunderstorms | 8 mph SSW | 23% |
| Saturday Night | 69°F | Mostly Cloudy | 3 to 7 mph S | 14% |
| Sunday | 90°F | Chance Showers And Thunderstorms | 2 to 7 mph NW | 30% |
| Sunday Night | 61°F | Showers And Thunderstorms Likely | 8 mph NE | 57% |
| Monday | 75°F | Showers And Thunderstorms Likely | 10 mph NE | 65% |
| Monday Night | 55°F | Showers And Thunderstorms Likely | 7 to 10 mph NE | 60% |
| Tuesday | 70°F | Chance Showers And Thunderstorms | 10 mph NNE | 33% |
| Tuesday Night | 52°F | Mostly Cloudy | 5 to 9 mph NNE | 7% |
| Wednesday | 72°F | Partly Sunny | 6 to 9 mph NNE | 2% |
| Wednesday Night | 53°F | Partly Cloudy | 2 to 7 mph NNE | 2% |
| Thursday | 74°F | Mostly Sunny | 3 to 8 mph NNE | 3% |
| Thursday Night | 54°F | Partly Cloudy | 2 to 6 mph NNE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Shelbyville (39.409, -88.800). Updated through the day.
Growing snapshot for Shelbyville
Last spring frost
Apr 10
First fall frost
Oct 24
Growing season
195 days
Hardiness zone
6a
More local growing data for Shelbyville: nearby ZIP 62565 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Cowden
Findlay
Herrick
Lakewood
Moweaqua
Oconee
Sigel
Stewardson
Strasburg
Tower Hill
Westervelt
Windsor
Climate data from the nearest NOAA station, Shelbyville Dam, Il (1.7 mi from Shelbyville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.