Shelbyville, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Shelbyville, a city in Shelby County, Illinois.
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 for Shelbyville
| 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) 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
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Herrick
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Moweaqua
Oconee
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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 Nov 4, 2026.