Shelbyville, IL Weather & Growing Conditions
Today
64°F
Slight Chance Drizzle
A slight chance of drizzle. Mostly cloudy. High near 64, with temperatures falling to around 58 in the afternoon. West southwest wind 9 to 13 mph, with gusts as high as 22 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 64°F | Slight Chance Drizzle | 9 to 13 mph WSW | 10% |
| Tonight | 42°F | Slight Chance Drizzle then Mostly Cloudy | 9 mph WSW | 10% |
| Thursday | 62°F | Partly Sunny | 9 to 13 mph WSW | 3% |
| Thursday Night | 42°F | Mostly Cloudy | 5 mph NW | 1% |
| Friday | 54°F | Partly Sunny | 6 to 9 mph NNW | 6% |
| Friday Night | 33°F | Partly Cloudy | 2 to 7 mph NNW | 0% |
| Saturday | 53°F | Mostly Sunny | 5 mph NNW | 0% |
| Saturday Night | 31°F | Partly Cloudy | 2 mph NW | 0% |
| Sunday | 59°F | Sunny | 2 to 7 mph WNW | 1% |
| Sunday Night | 33°F | Clear | 2 mph W | 1% |
| Monday | 63°F | Sunny | 1 to 6 mph SW | 0% |
| Monday Night | 37°F | Clear | 2 mph SW | 0% |
| Tuesday | 66°F | Sunny | 5 mph W | 1% |
| Tuesday Night | 38°F | Mostly Clear | 1 mph N | 1% |
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 Nov 4, 2026.