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

Harrisburg-Raleigh Airport (KHSB)

Lat: 37.81°NLon: 88.54°WElev: 387ft.

Fair

68°F

20°C

Humidity 95%
Wind Speed Calm
Barometer 30.06 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 4 Aug 10:55 pm CDT
Extended Forecast for

7 Miles SE Harrisburg IL

  • Tonight

    Tonight: Mostly clear, with a low around 63. Calm wind.

    Low: 63 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 89. Light and variable wind.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 69. Calm wind.

    Low: 69 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 88 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 71. Calm wind.

    Low: 71 °F

    Chance
    T-storms

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 88 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 89. Light southwest wind.

    High: 89 °F

    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 71. Calm wind.

    Low: 71 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 63. Calm wind.
Wednesday
Sunny, with a high near 89. Light and variable wind.
Wednesday Night
Increasing clouds, with a low around 69. Calm wind.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Calm wind becoming south southwest around 5 mph in the afternoon.
Thursday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 71. Calm wind.
Friday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. Calm wind becoming west southwest around 6 mph in the afternoon.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Calm wind.
Saturday
A slight chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 89. Light southwest wind.
Saturday Night
Mostly clear, with a low around 71. Calm wind.
Sunday
Sunny, with a high near 91. Calm wind becoming south southwest 5 to 7 mph in the morning.
Sunday Night
Mostly clear, with a low around 74. South wind 3 to 5 mph.
Monday
Sunny, with a high near 93. South southwest wind 6 to 9 mph.
Monday Night
Mostly clear, with a low around 76. South southwest wind around 8 mph.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 92. Southwest wind around 8 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles SE Harrisburg IL
 37.67°N 88.44°W
Last Update:
8:46 pm CDT Aug 4, 2026
Forecast Valid:
11pm CDT Aug 4, 2026-6pm CDT Aug 11, 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