Lake Santee, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lake Santee, a community in Decatur County, Indiana.
Overnight
57°F
Clear
Clear, with a low around 57. Northeast wind around 1 mph.
7-day forecast for Lake Santee
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 57°F | Clear | 1 mph NE | 0% |
| Tuesday | 83°F | Sunny | 2 mph NE | 0% |
| Tuesday Night | 62°F | Mostly Clear | 1 mph NE | 0% |
| Wednesday | 86°F | Sunny | 2 mph NW | 1% |
| Wednesday Night | 66°F | Mostly Clear | 1 mph S | 2% |
| Thursday | 86°F | Mostly Sunny then Scattered Showers And Thunderstorms | 1 to 5 mph SW | 27% |
| Thursday Night | 67°F | Scattered Showers And Thunderstorms then Chance Showers And Thunderstorms | 3 mph SW | 63% |
| Friday | 84°F | Chance Showers And Thunderstorms | 1 to 5 mph SW | 63% |
| Friday Night | 66°F | Chance Showers And Thunderstorms | 2 mph SW | 63% |
| Saturday | 84°F | Chance Showers And Thunderstorms | 1 to 5 mph SW | 27% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms then Partly Cloudy | 2 mph SW | 27% |
| Sunday | 87°F | Mostly Sunny | 2 to 6 mph SW | 14% |
| Sunday Night | 70°F | Partly Cloudy | 3 mph SW | 14% |
| Monday | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 7 mph SW | 19% |
Forecast source: National Weather Service (api.weather.gov) for Lake Santee (39.410, -85.308). Updated through the day.
Growing snapshot for Lake Santee
Last spring frost
Apr 15
First fall frost
Oct 26
Growing season
194 days
Hardiness zone
6a
More local growing data for Lake Santee: nearby ZIP 47225 weather · frost dates · planting calendar · Indiana frost dates
Nearby towns & communities
Adams
Andersonville
Burney
Clarksburg
Greensburg
Letts
Milford
Millhousen
New Point
Sardinia
St. Omer
St. Paul
Westport
Climate data from the nearest NOAA station, Greensburg, In (9.8 mi from Lake Santee). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.