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

Hazardous Weather Conditions

Current conditions at

Harrisburg-Raleigh Airport (KHSB)

Lat: 37.81°NLon: 88.54°WElev: 387ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Old Shawneetown IL

Heat Advisory August 10, 03:57pm until August 13, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 10, 03:57pm until August 13, 08:00pm

    NOW until 8:00pm Thu

    Heat Advisory

  • This Afternoon

    High: 95 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 76. South southwest wind around 7 mph.

    Low: 76 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 95. Heat index values as high as 106. Southwest wind 7 to 9 mph.

    High: 95 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 76. South southwest wind around 7 mph.

    Low: 76 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. Southwest wind 6 to 8 mph.

    High: 94 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 76. South southwest wind around 6 mph. Chance of precipitation is 20%.

    Low: 76 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 94. Southwest wind 6 to 8 mph.

    High: 94 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 75. South wind around 5 mph.

    Low: 75 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 95. Heat index values as high as 105. South southwest wind around 9 mph.
Tonight
Partly cloudy, with a low around 76. South southwest wind around 7 mph.
Tuesday
Mostly sunny, with a high near 95. Heat index values as high as 106. Southwest wind 7 to 9 mph.
Tuesday Night
Mostly clear, with a low around 76. South southwest wind around 7 mph.
Wednesday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. Southwest wind 6 to 8 mph.
Wednesday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 76. South southwest wind around 6 mph. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 94. Southwest wind 6 to 8 mph.
Thursday Night
Partly cloudy, with a low around 75. South wind around 5 mph.
Friday
Mostly sunny, with a high near 94. Southwest wind around 6 mph becoming northwest in the morning.
Friday Night
Partly cloudy, with a low around 74. East southeast wind 3 to 5 mph.
Saturday
Sunny, with a high near 95. South southeast wind 5 to 7 mph becoming southwest in the afternoon.
Saturday Night
Mostly clear, with a low around 75. South wind around 5 mph.
Sunday
Sunny and hot, with a high near 97. West wind 6 to 8 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Old Shawneetown IL
 37.7°N 88.13°W
Last Update:
2:16 pm CDT Aug 10, 2026
Forecast Valid:
3pm CDT Aug 10, 2026-6pm CDT Aug 16, 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