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.

Light Rain

76°F

24°C

Humidity 63%
Wind Speed Calm
Barometer 30.12 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 24 Jul 3:15 pm CDT
Extended Forecast for

Harrisburg IL

  • This Afternoon

    This Afternoon: A 50 percent chance of showers. Mostly cloudy, with a steady temperature around 77. Calm wind.

    High: 77 °F

    Chance
    Showers

  • Tonight

    Tonight: A slight chance of showers, then a chance of showers and thunderstorms after 10pm. Mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 30%.

    Low: 66 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: Showers and thunderstorms likely, mainly before noon. Partly sunny, with a high near 85. Calm wind becoming south around 5 mph. Chance of precipitation is 60%.

    High: 85 °F

    Showers
    Likely then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 71. Calm wind.

    Low: 71 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 92. Calm wind.

    High: 92 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 73. Calm wind.

    Low: 73 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 96. Southwest wind 3 to 8 mph.

    High: 96 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 78. South southwest wind around 8 mph.

    Low: 78 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 97. West wind 5 to 9 mph becoming north northwest in the afternoon.

    High: 97 °F

    Hot

Detailed Forecast

This Afternoon
A 50 percent chance of showers. Mostly cloudy, with a steady temperature around 77. Calm wind.
Tonight
A slight chance of showers, then a chance of showers and thunderstorms after 10pm. Mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 30%.
Saturday
Showers and thunderstorms likely, mainly before noon. Partly sunny, with a high near 85. Calm wind becoming south around 5 mph. Chance of precipitation is 60%.
Saturday Night
Partly cloudy, with a low around 71. Calm wind.
Sunday
Mostly sunny, with a high near 92. Calm wind.
Sunday Night
Mostly clear, with a low around 73. Calm wind.
Monday
Mostly sunny, with a high near 96. Southwest wind 3 to 8 mph.
Monday Night
Mostly clear, with a low around 78. South southwest wind around 8 mph.
Tuesday
Sunny and hot, with a high near 97. West wind 5 to 9 mph becoming north northwest in the afternoon.
Tuesday Night
Mostly clear, with a low around 73. North wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 92. Calm wind becoming north northeast 5 to 8 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 70. Light northeast wind.
Thursday
Sunny, with a high near 92. Calm wind becoming east around 5 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg IL
 37.74°N 88.58°W
Last Update:
1:26 pm CDT Jul 24, 2026
Forecast Valid:
3pm CDT Jul 24, 2026-6pm CDT Jul 30, 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