LaPlace, IL Weather & Growing Conditions
This Afternoon
84°F
Mostly Sunny
Mostly sunny, with a high near 84. South wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 84°F | Mostly Sunny | 5 mph S | 2% |
| Tonight | 64°F | Mostly Clear | 5 to 8 mph SSE | 0% |
| Wednesday | 85°F | Mostly Sunny | 5 to 10 mph SSW | 8% |
| Wednesday Night | 67°F | Showers And Thunderstorms Likely | 5 to 8 mph SSW | 67% |
| Thursday | 80°F | Showers And Thunderstorms Likely | 7 mph SSW | 70% |
| Thursday Night | 66°F | Chance Showers And Thunderstorms | 5 mph S | 43% |
| Friday | 82°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 3 to 7 mph SSW | 31% |
| Friday Night | 66°F | Chance Showers And Thunderstorms | 3 to 7 mph SW | 28% |
| Saturday | 84°F | Slight Chance Showers And Thunderstorms | 7 mph WSW | 21% |
| Saturday Night | 68°F | Slight Chance Rain Showers then Mostly Clear | 7 mph SSW | 15% |
| Sunday | 86°F | Slight Chance Showers And Thunderstorms | 8 to 13 mph SSW | 18% |
| Sunday Night | 72°F | Chance Showers And Thunderstorms | 12 mph SSW | 25% |
| Monday | 88°F | Chance Rain Showers | 10 to 16 mph SW | 25% |
| Monday Night | 73°F | Slight Chance Showers And Thunderstorms | 12 to 15 mph SW | 31% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for LaPlace, IL
Last spring frost
Apr 16
First fall frost
Oct 22
Growing season
187 days
Hardiness zone
6a
Explore more for LaPlace, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Decatur Ap, Il (7.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.