Shelbyville, IL Weather & Growing Conditions
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
| 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). Updated through the day.
Growing snapshot for Shelbyville, IL
Last spring frost
Apr 10
First fall frost
Oct 24
Growing season
195 days
Hardiness zone
6a
Explore more for Shelbyville, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Shelbyville Dam, Il (1.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.