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

Dangerous Heat in the Central and Eastern U.S.; Critical Fire Weather in the Great Basin and 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 Tuesday across portions of the Four Corners and Great Basin, as dry conditions and gusty winds persist. Read More >

Hazardous Weather Conditions

Current conditions at

Harrisburg-Raleigh Airport (KHSB)

Lat: 37.81°NLon: 88.54°WElev: 387ft.

Fair

74°F

23°C

Humidity 98%
Wind Speed Calm
Barometer 30.02 in
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Last update 30 Jun 12:15 am CDT
Extended Forecast for

5 Miles WSW Eddyville IL

Extreme Heat Warning June 30, 12:19am until July 3, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning June 30, 12:19am until July 3, 08:00pm

    NOW until 8:00pm Fri

    Extreme Heat Warning

  • Overnight

    Low: 78 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 94. Heat index values as high as 107. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 94 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 74. Light south wind.

    Low: 74 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 95. Heat index values as high as 106. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 95 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 76. Calm wind.

    Low: 76 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 95. Light and variable wind.

    High: 95 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 75. Calm wind.

    Low: 75 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 94. Light and variable wind.

    High: 94 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

Overnight
Clear, with a steady temperature around 78. South southwest wind 3 to 5 mph.
Tuesday
Sunny, with a high near 94. Heat index values as high as 107. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
Clear, with a low around 74. Light south wind.
Wednesday
Sunny, with a high near 95. Heat index values as high as 106. Calm wind becoming south southwest around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 76. Calm wind.
Thursday
Sunny, with a high near 95. Light and variable wind.
Thursday Night
Mostly clear, with a low around 75. Calm wind.
Friday
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 94. Light and variable wind.
Friday Night
Mostly clear, with a low around 74. Calm wind.
Independence Day
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. Calm wind.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 74. Calm wind.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Light and variable wind.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 73. Calm wind.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 90. Calm wind becoming west northwest around 5 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW Eddyville IL
 37.48°N 88.65°W
Last Update:
11:21 pm CDT Jun 29, 2026
Forecast Valid:
12am CDT Jun 30, 2026-6pm CDT Jul 6, 2026
 
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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