National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Heat in the East; Critical Fire Weather in the Southwest

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Heat is likely to continue across the eastern U.S. through the Independence Day holiday weekend. Critical fire weather conditions will continue today and likely Tuesday across portions of the Four Corners and northern High Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Lawrenceville-Vincennes International Airport (KLWV)

Lat: 38.76°NLon: 87.6°WElev: 433ft.

Fair

84°F

29°C

Humidity 80%
Wind Speed S 12 mph
Barometer 30.03 in (1016.3 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 29 Jun 9:53 am CDT
Extended Forecast for

Lawrenceville-Vincennes Intl Airport IL

Heat Advisory June 29, 11:00am until July 3, 12:00am
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: Mostly sunny, with a high near 93. Heat index values as high as 107. South wind 9 to 13 mph, with gusts as high as 17 mph.

    High: 93 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 75. South wind 6 to 10 mph, with gusts as high as 15 mph.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 95. Heat index values as high as 110. South southwest wind 6 to 10 mph, with gusts as high as 15 mph.

    High: 95 °F

    Hot

  • Tuesday Night

    Tuesday Night: Clear, with a low around 74. South southwest wind 5 to 9 mph.

    Low: 74 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 96. South southwest wind 5 to 7 mph.

    High: 96 °F

    Hot

  • Wednesday Night

    Wednesday Night: Clear, with a low around 75. South wind 3 to 6 mph.

    Low: 75 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 96. South southwest wind 3 to 6 mph.

    High: 96 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 93.

    High: 93 °F

    Chance
    T-storms

Detailed Forecast

Today
Mostly sunny, with a high near 93. Heat index values as high as 107. South wind 9 to 13 mph, with gusts as high as 17 mph.
Tonight
Mostly clear, with a low around 75. South wind 6 to 10 mph, with gusts as high as 15 mph.
Tuesday
Sunny and hot, with a high near 95. Heat index values as high as 110. South southwest wind 6 to 10 mph, with gusts as high as 15 mph.
Tuesday Night
Clear, with a low around 74. South southwest wind 5 to 9 mph.
Wednesday
Sunny and hot, with a high near 96. South southwest wind 5 to 7 mph.
Wednesday Night
Clear, with a low around 75. South wind 3 to 6 mph.
Thursday
Sunny and hot, with a high near 96. South southwest wind 3 to 6 mph.
Thursday Night
Mostly clear, with a low around 76.
Friday
A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 93.
Friday Night
Partly cloudy, with a low around 76.
Independence Day
A chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Saturday Night
A chance of showers and thunderstorms. Mostly clear, with a low around 74.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 90.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lawrenceville-Vincennes Intl Airport IL
 38.77°N 87.61°W (Elev. 427 ft)
Last Update:
2:46 am CDT Jun 29, 2026
Forecast Valid:
10am CDT Jun 29, 2026-6pm CDT Jul 5, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation