Shamrock Lakes, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Shamrock Lakes, a town in Grant County, Indiana.
Tonight
59°F
Partly Cloudy
Partly cloudy, with a low around 59. East wind around 5 mph.
7-day forecast for Shamrock Lakes
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 59°F | Partly Cloudy | 5 mph E | 3% |
| Saturday | 81°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 mph SE | 86% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms | 5 mph S | 61% |
| Sunday | 80°F | Showers And Thunderstorms Likely | 5 to 10 mph W | 65% |
| Sunday Night | 57°F | Showers And Thunderstorms Likely | 10 to 15 mph NE | 64% |
| Monday | 68°F | Showers And Thunderstorms Likely | 10 to 15 mph NE | 63% |
| Monday Night | 53°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 43% |
| Tuesday | 67°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 32% |
| Tuesday Night | 54°F | Slight Chance Rain Showers | 5 to 15 mph NE | 17% |
| Wednesday | 68°F | Mostly Cloudy | 5 to 10 mph NE | 14% |
| Wednesday Night | 54°F | Mostly Cloudy | 5 to 10 mph N | 12% |
| Thursday | 70°F | Partly Sunny | 5 to 10 mph N | 9% |
| Thursday Night | 53°F | Mostly Cloudy | 5 to 10 mph N | 9% |
| Friday | 70°F | Partly Sunny | 5 to 10 mph N | 4% |
Forecast source: National Weather Service (api.weather.gov) for Shamrock Lakes (40.411, -85.427). Updated through the day.
Growing snapshot for Shamrock Lakes
Last spring frost
Apr 22
First fall frost
Oct 22
Growing season
181 days
Hardiness zone
6a
More local growing data for Shamrock Lakes: nearby ZIP 46989 weather · frost dates · planting calendar · Indiana frost dates
Nearby towns & communities
Converse
Fairmount
Fowlerton
Gas City
Herbst
Jalapa
Jonesboro
Landess
Marion
Matthews
Mier
Point Isabel
Sims
Swayzee
Sweetser
Upland
Van Buren
Climate data from the nearest NOAA station, Hartford City 4 Ese, In (10.1 mi from Shamrock Lakes). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.