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.

Fair

71°F

22°C

Humidity 92%
Wind Speed Calm
Barometer 30.04 in
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 30 Aug 11:15 pm CDT
Extended Forecast for

Thompsonville IL

Heat Advisory August 31, 10:00am until September 4, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: Mostly clear, with a low around 73. South wind 3 to 5 mph.

    Low: 73 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 98. Light south wind becoming southwest 6 to 11 mph in the morning.

    High: 98 °F

    Hot

  • Monday Night

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

    Low: 75 °F

    Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 100. South southwest wind 3 to 7 mph.

    High: 100 °F

    Hot

  • Tuesday Night

    Tuesday Night: Clear, with a low around 76. South wind around 6 mph becoming calm in the evening.

    Low: 76 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 100. Calm wind becoming southwest 5 to 8 mph in the morning.

    High: 100 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 77. South wind around 5 mph becoming calm in the evening.

    Low: 77 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 100. Calm wind becoming southwest 5 to 7 mph in the morning.

    High: 100 °F

    Hot

  • Thursday Night

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

    Low: 76 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 73. South wind 3 to 5 mph.
Monday
Sunny and hot, with a high near 98. Light south wind becoming southwest 6 to 11 mph in the morning.
Monday Night
Clear, with a low around 75. South wind 3 to 6 mph.
Tuesday
Sunny and hot, with a high near 100. South southwest wind 3 to 7 mph.
Tuesday Night
Clear, with a low around 76. South wind around 6 mph becoming calm in the evening.
Wednesday
Sunny and hot, with a high near 100. Calm wind becoming southwest 5 to 8 mph in the morning.
Wednesday Night
Mostly clear, with a low around 77. South wind around 5 mph becoming calm in the evening.
Thursday
Sunny and hot, with a high near 100. Calm wind becoming southwest 5 to 7 mph in the morning.
Thursday Night
Mostly clear, with a low around 76. Light south wind.
Friday
A slight chance of showers and thunderstorms. Sunny and hot, with a high near 98. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 73. Calm wind.
Saturday
A slight chance of showers and thunderstorms. Sunny, with a high near 95. Calm wind becoming north 5 to 7 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 70. East northeast wind 5 to 10 mph becoming light after midnight.
Sunday
Sunny, with a high near 93. Light northeast wind increasing to 5 to 10 mph in the morning.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Thompsonville IL
 37.91°N 88.77°W
Last Update:
10:51 pm CDT Aug 30, 2026
Forecast Valid:
11pm CDT Aug 30, 2026-6pm CDT Sep 6, 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