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Hazardous Weather Conditions

Current conditions at

Harrisburg-Raleigh Airport (KHSB)

Lat: 37.81°NLon: 88.54°WElev: 387ft.

Partly Cloudy

73°F

23°C

Humidity 99%
Wind Speed Calm
Barometer 29.92 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 19 Aug 10:55 pm CDT
Extended Forecast for

5 Miles SSE Harrisburg IL

Flood Watch until August 20, 07:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch until August 20, 07:00am

    NOW until 7:00am Thu

    Flood Watch

  • Tonight

    Low: 68 °F

    Heavy Rain

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 86. Calm wind becoming north around 5 mph in the afternoon.

    High: 86 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 66. Calm wind.

    Low: 66 °F

    Increasing
    Clouds

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 88. Light north wind.

    High: 88 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Mostly clear, with a low around 66. Calm wind.

    Low: 66 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 89. Calm wind becoming northwest 5 to 8 mph in the afternoon.

    High: 89 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 64. Calm wind.

    Low: 64 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 86. Calm wind becoming north 5 to 7 mph in the afternoon.

    High: 86 °F

    Sunny

Detailed Forecast

Tonight
Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms after 2am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 70%.
Thursday
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 86. Calm wind becoming north around 5 mph in the afternoon.
Thursday Night
Increasing clouds, with a low around 66. Calm wind.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 88. Light north wind.
Friday Night
Mostly clear, with a low around 66. Calm wind.
Saturday
Sunny, with a high near 89. Calm wind becoming northwest 5 to 8 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 64. Calm wind.
Sunday
Sunny, with a high near 86. Calm wind becoming north 5 to 7 mph in the afternoon.
Sunday Night
A slight chance of showers after 1am. Partly cloudy, with a low around 63. Light east northeast wind.
Monday
A slight chance of showers before 1pm. Mostly sunny, with a high near 86. Calm wind becoming southeast around 6 mph in the afternoon.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 65. Light east wind.
Tuesday
Mostly sunny, with a high near 88. Calm wind becoming south southeast around 6 mph in the morning.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 66. Light east northeast wind.
Wednesday
Mostly sunny, with a high near 91. Calm wind becoming north northwest around 6 mph in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Harrisburg IL
 37.67°N 88.5°W
Last Update:
9:46 pm CDT Aug 19, 2026
Forecast Valid:
11pm CDT Aug 19, 2026-6pm CDT Aug 26, 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