Shamrock Lakes, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Shamrock Lakes, a town in Grant County, Indiana.
This Afternoon
69°F
Scattered Rain Showers
Scattered rain showers before 5pm. Mostly cloudy, with a high near 69. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
7-day forecast for Shamrock Lakes
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 69°F | Scattered Rain Showers | 15 mph SW | 34% |
| Tonight | 46°F | Mostly Cloudy | 5 to 10 mph SW | 10% |
| Thursday | 61°F | Mostly Cloudy | 10 to 15 mph SW | 6% |
| Thursday Night | 42°F | Chance Rain Showers | 5 to 10 mph W | 41% |
| Friday | 53°F | Chance Rain Showers | 5 to 15 mph NW | 33% |
| Friday Night | 33°F | Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NW | 33% |
| Saturday | 53°F | Partly Sunny | 5 to 10 mph NW | 1% |
| Saturday Night | 29°F | Partly Cloudy | 0 to 5 mph W | 0% |
| Sunday | 57°F | Sunny | 0 to 10 mph W | 0% |
| Sunday Night | 31°F | Mostly Clear | 0 to 5 mph W | 0% |
| Monday | 61°F | Sunny | 0 to 10 mph W | 0% |
| Monday Night | 36°F | Clear | 5 mph SW | 0% |
| Tuesday | 63°F | Sunny | 5 mph W | 1% |
| Tuesday Night | 34°F | Mostly Clear | 0 to 5 mph NW | 2% |
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 Nov 4, 2026.