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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

WhenTempForecastWindPrecip
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

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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.