Decker, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Decker, a town in Gibson County, Indiana.
Today
85°F
Sunny
Sunny. High near 85, with temperatures falling to around 83 in the afternoon. East northeast wind around 3 mph.
7-day forecast for Decker
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Sunny | 3 mph ENE | 0% |
| Tonight | 64°F | Mostly Clear | 2 mph ENE | 0% |
| Wednesday | 87°F | Sunny | 1 mph SW | 0% |
| Wednesday Night | 68°F | Mostly Clear | 2 mph S | 3% |
| Thursday | 86°F | Partly Sunny then Isolated Showers And Thunderstorms | 2 to 7 mph SSW | 18% |
| Thursday Night | 70°F | Scattered Showers And Thunderstorms | 1 to 6 mph S | 54% |
| Friday | 86°F | Scattered Showers And Thunderstorms | 2 to 6 mph SSW | 54% |
| Friday Night | 70°F | Scattered Showers And Thunderstorms | 1 to 5 mph SSW | 38% |
| Saturday | 86°F | Chance Showers And Thunderstorms | 1 to 5 mph SSW | 34% |
| Saturday Night | 70°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 mph S | 24% |
| Sunday | 88°F | Mostly Sunny | 3 to 8 mph SSW | 11% |
| Sunday Night | 72°F | Mostly Clear | 7 mph SSW | 11% |
| Monday | 90°F | Sunny | 5 to 9 mph SSW | 10% |
| Monday Night | 73°F | Slight Chance Showers And Thunderstorms | 8 mph SSW | 17% |
Forecast source: National Weather Service (api.weather.gov) for Decker (38.518, -87.524). Updated through the day.
Growing snapshot for Decker
Last spring frost
Apr 13
First fall frost
Oct 25
Growing season
194 days
Hardiness zone
6b
More local growing data for Decker: nearby ZIP 47640 weather · frost dates · planting calendar · Indiana frost dates
Nearby towns & communities
Buckskin
Cynthiana
Fort Branch
Francisco
Griffin
Haubstadt
Hazleton
Johnson
Mackey
Oakland City
Owensville
Patoka
Princeton
Somerville
Climate data from the nearest NOAA station, Princeton 1 W, In (10.2 mi from Decker). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.