LaPlace, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for LaPlace, a community in Piatt County, Illinois.
Tonight
70°F
Mostly Cloudy
Mostly cloudy, with a low around 70. South wind around 7 mph.
7-day forecast for LaPlace
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 70°F | Mostly Cloudy | 7 mph S | 9% |
| Sunday | 85°F | Partly Sunny then Chance Showers And Thunderstorms | 6 to 12 mph N | 30% |
| Sunday Night | 60°F | Chance Showers And Thunderstorms | 13 mph NE | 45% |
| Monday | 71°F | Showers And Thunderstorms Likely | 10 to 15 mph ENE | 67% |
| Monday Night | 54°F | Chance Rain Showers | 14 mph ENE | 47% |
| Tuesday | 67°F | Chance Rain Showers | 14 mph NE | 40% |
| Tuesday Night | 52°F | Mostly Cloudy | 7 to 14 mph NNE | 10% |
| Wednesday | 69°F | Partly Sunny | 12 mph NNE | 6% |
| Wednesday Night | 53°F | Partly Cloudy | 5 to 10 mph NNE | 0% |
| Thursday | 72°F | Partly Sunny | 6 to 9 mph NNE | 1% |
| Thursday Night | 55°F | Mostly Cloudy | 5 to 8 mph NNE | 7% |
| Friday | 75°F | Partly Sunny | 5 to 9 mph NNE | 11% |
| Friday Night | 54°F | Partly Cloudy | 5 to 8 mph NE | 11% |
| Saturday | 77°F | Mostly Sunny | 7 mph ENE | 1% |
Forecast source: National Weather Service (api.weather.gov) for LaPlace (39.798, -88.715). Updated through the day.
Growing snapshot for LaPlace
Last spring frost
Apr 16
First fall frost
Oct 22
Growing season
187 days
Hardiness zone
6a
More local growing data for LaPlace: nearby ZIP 61936 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Decatur Ap, Il (7.7 mi from LaPlace). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.