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Hazardous Weather Conditions

Current conditions at

Harrisburg-Raleigh Airport (KHSB)

Lat: 37.81°NLon: 88.54°WElev: 387ft.

Mostly Cloudy

87°F

31°C

Humidity 73%
Wind Speed NE 14 mph
Barometer 30.14 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 15 Aug 10:55 am CDT
Extended Forecast for

Old Shawneetown IL

Extreme Heat Warning August 15, 11:08am until August 16, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 15, 11:08am until August 16, 08:00pm

    NOW until 8:00pm Sun

    Extreme Heat Warning

  • Today

    High: 96 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 75. South southwest wind 3 to 6 mph.

    Low: 75 °F

    Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 97. Heat index values as high as 108. West southwest wind around 7 mph.

    High: 97 °F

    Hot

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 72. West southwest wind around 5 mph becoming calm in the evening.

    Low: 72 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly between 7am and 1pm. Mostly sunny, with a high near 88. North northwest wind 5 to 7 mph.

    High: 88 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 66. North wind around 5 mph becoming calm in the evening.

    Low: 66 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88. Calm wind.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 68. Calm wind.

    Low: 68 °F

    Mostly Clear

Detailed Forecast

Today
Sunny, with a high near 96. Heat index values as high as 106. South southwest wind 5 to 7 mph.
Tonight
Clear, with a low around 75. South southwest wind 3 to 6 mph.
Sunday
Sunny and hot, with a high near 97. Heat index values as high as 108. West southwest wind around 7 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 72. West southwest wind around 5 mph becoming calm in the evening.
Monday
A 30 percent chance of showers and thunderstorms, mainly between 7am and 1pm. Mostly sunny, with a high near 88. North northwest wind 5 to 7 mph.
Monday Night
Mostly clear, with a low around 66. North wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 88. Calm wind.
Tuesday Night
Mostly clear, with a low around 68. Calm wind.
Wednesday
A chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 92. Light and variable wind becoming south southwest 5 to 8 mph in the morning.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 68. North wind 3 to 6 mph.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 84. Northeast wind 5 to 8 mph.
Thursday Night
Partly cloudy, with a low around 63. North northeast wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 84. Calm wind becoming north northeast around 6 mph in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Old Shawneetown IL
 37.7°N 88.13°W
Last Update:
10:16 am CDT Aug 15, 2026
Forecast Valid:
11am CDT Aug 15, 2026-6pm CDT Aug 21, 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