Lawrenceville, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lawrenceville, a city in Lawrence County, Illinois.
This Afternoon
95°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 95. West southwest wind around 8 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Lawrenceville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 95°F | Slight Chance Showers And Thunderstorms | 8 mph WSW | 24% |
| Tonight | 71°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 6 mph S | 17% |
| Sunday | 94°F | Mostly Sunny | 6 to 10 mph WSW | 6% |
| Sunday Night | 66°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 7 to 10 mph NNE | 49% |
| Monday | 81°F | Chance Showers And Thunderstorms | 7 to 10 mph NE | 51% |
| Monday Night | 59°F | Chance Showers And Thunderstorms | 7 to 10 mph NE | 45% |
| Tuesday | 74°F | Chance Showers And Thunderstorms | 8 to 12 mph NNE | 30% |
| Tuesday Night | 57°F | Mostly Cloudy | 6 to 12 mph NNE | 12% |
| Wednesday | 74°F | Partly Sunny | 6 to 10 mph N | 11% |
| Wednesday Night | 56°F | Partly Cloudy | 3 to 10 mph N | 4% |
| Thursday | 75°F | Partly Sunny | 3 to 8 mph N | 2% |
| Thursday Night | 57°F | Partly Cloudy | 3 to 7 mph NNE | 2% |
| Friday | 77°F | Partly Sunny | 3 to 9 mph NNE | 4% |
| Friday Night | 56°F | Partly Cloudy | 3 to 8 mph NNE | 4% |
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 Sep 19, 2026.