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.

Partly Cloudy

84°F

29°C

Humidity 70%
Wind Speed Calm
Barometer 29.99 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 20 Aug 1:15 pm CDT
Extended Forecast for

6 Miles SE Harrisburg IL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Calm wind becoming north around 5 mph.

    High: 84 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, partly cloudy, with a low around 65. Light north wind.

    Low: 65 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 86. Light north wind.

    High: 86 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 65. Calm wind.

    Low: 65 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 87. Calm wind becoming northwest 5 to 8 mph in the morning.

    High: 87 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 62. Light north wind.

    Low: 62 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 84. Calm wind becoming north around 6 mph in the afternoon.

    High: 84 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 60. Calm wind.

    Low: 60 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 83. Light and variable wind.

    High: 83 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Calm wind becoming north around 5 mph.
Tonight
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 65. Light north wind.
Friday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 86. Light north wind.
Friday Night
Mostly clear, with a low around 65. Calm wind.
Saturday
Mostly sunny, with a high near 87. Calm wind becoming northwest 5 to 8 mph in the morning.
Saturday Night
Mostly clear, with a low around 62. Light north wind.
Sunday
Sunny, with a high near 84. Calm wind becoming north around 6 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 60. Calm wind.
Monday
Mostly sunny, with a high near 83. Light and variable wind.
Monday Night
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 62. Calm wind.
Tuesday
Mostly sunny, with a high near 86. Calm wind becoming south southeast around 5 mph in the afternoon.
Tuesday Night
A slight chance of showers. Partly cloudy, with a low around 65. Calm wind.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. Light and variable wind.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SE Harrisburg IL
 37.67°N 88.47°W
Last Update:
1:26 pm CDT Aug 20, 2026
Forecast Valid:
1pm CDT Aug 20, 2026-6pm CDT Aug 26, 2026
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

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Chance of Precipitation