Flat Rock, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Flat Rock, a community in Shelby County, Indiana.
Today
83°F
Sunny
Sunny, with a high near 83. Northeast wind around 1 mph.
7-day forecast for Flat Rock
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Sunny | 1 mph NE | 0% |
| Tonight | 62°F | Mostly Clear | 2 mph NNE | 0% |
| Wednesday | 86°F | Sunny | 1 mph NNW | 0% |
| Wednesday Night | 66°F | Mostly Clear | 1 mph SSE | 3% |
| Thursday | 86°F | Mostly Sunny then Scattered Showers And Thunderstorms | 1 to 5 mph SSW | 31% |
| Thursday Night | 68°F | Scattered Showers And Thunderstorms then Chance Showers And Thunderstorms | 1 to 5 mph SSW | 65% |
| Friday | 84°F | Chance Showers And Thunderstorms then Isolated Showers And Thunderstorms | 1 to 5 mph SSW | 63% |
| Friday Night | 68°F | Chance Showers And Thunderstorms | 3 mph SW | 60% |
| Saturday | 85°F | Chance Showers And Thunderstorms | 3 mph SSW | 26% |
| Saturday Night | 68°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 mph SSW | 24% |
| Sunday | 87°F | Mostly Sunny | 2 to 6 mph SSW | 13% |
| Sunday Night | 71°F | Partly Cloudy | 5 mph SSW | 13% |
| Monday | 89°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 7 mph SW | 17% |
| Monday Night | 71°F | Chance Showers And Thunderstorms | 6 mph SW | 30% |
Forecast source: National Weather Service (api.weather.gov) for Flat Rock (39.362, -85.831). Updated through the day.
Growing snapshot for Flat Rock
Last spring frost
Apr 17
First fall frost
Oct 22
Growing season
187 days
Hardiness zone
6b
More local growing data for Flat Rock: nearby ZIP 47234 weather · frost dates · planting calendar · Indiana frost dates
Nearby towns & communities
Boggstown
Carrollton
Edinburgh
Fairland
Fountaintown
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Gwynneville
London
Marietta
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Morristown
Pleasant View Village
Shelbyville
Waldron
Climate data from the nearest NOAA station, Shelbyville Sewage Plt, In (10.6 mi from Flat Rock). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.