Lawrenceville, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lawrenceville, a city in Lawrence County, Illinois.
Today
85°F
Sunny
Sunny, with a high near 85. East northeast wind around 3 mph.
7-day forecast for Lawrenceville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Sunny | 3 mph ENE | 0% |
| Tonight | 64°F | Mostly Clear | 2 mph E | 0% |
| Wednesday | 87°F | Sunny | 2 mph S | 0% |
| Wednesday Night | 68°F | Mostly Clear | 3 mph S | 6% |
| Thursday | 86°F | Chance Rain Showers then Chance Showers And Thunderstorms | 2 to 7 mph SSW | 29% |
| Thursday Night | 69°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 mph S | 56% |
| Friday | 85°F | Chance Showers And Thunderstorms | 2 to 6 mph SW | 41% |
| Friday Night | 69°F | Chance Showers And Thunderstorms | 3 mph SSW | 35% |
| Saturday | 86°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 5 mph SSW | 30% |
| Saturday Night | 70°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 mph S | 22% |
| Sunday | 88°F | Sunny | 3 to 9 mph SSW | 12% |
| Sunday Night | 72°F | Mostly Clear | 7 mph SSW | 12% |
| Monday | 90°F | Sunny | 6 to 9 mph SSW | 11% |
| Monday Night | 73°F | Slight Chance Showers And Thunderstorms | 7 mph SSW | 21% |
Forecast source: National Weather Service (api.weather.gov) for Lawrenceville (38.726, -87.687). Updated through the day.
Growing snapshot for Lawrenceville
Last spring frost
Apr 8
First fall frost
Oct 26
Growing season
200 days
Hardiness zone
6b
More local growing data for Lawrenceville: nearby ZIP 62439 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Lawrenceville Intl Ap, Il (2.3 mi from Lawrenceville). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.