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.

Mostly Cloudy

83°F

28°C

Humidity 67%
Wind Speed S 13 G 20 mph
Barometer 30.01 in
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 18 May 11:55 am CDT
Extended Forecast for

7 Miles SE Harrisburg IL

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 86. South southwest wind 11 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

    High: 86 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms between 7pm and 11pm. Low around 72. South southwest wind 7 to 9 mph becoming east southeast in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 80%.

    Low: 72 °F

    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: Showers and thunderstorms likely, mainly after 4pm. Partly sunny, with a high near 87. South southwest wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.

    High: 87 °F

    Chance
    Showers then
    T-storms
    Likely

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms before 11pm, then showers and possibly a thunderstorm between 11pm and 1am, then showers after 1am. Low around 64. South southwest wind around 6 mph becoming calm. Chance of precipitation is 90%.

    Low: 64 °F

    T-storms then
    Showers

  • Wednesday

    Wednesday: A chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm. Mostly cloudy, with a high near 74. North wind around 8 mph. Chance of precipitation is 50%.

    High: 74 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 57. North northeast wind around 7 mph.

    Low: 57 °F

    Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 75. East northeast wind around 7 mph.

    High: 75 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 60. East wind 3 to 7 mph.

    Low: 60 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 77. Light and variable wind becoming south southeast around 5 mph in the afternoon.

    High: 77 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 86. South southwest wind 11 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Tonight
Showers and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms between 7pm and 11pm. Low around 72. South southwest wind 7 to 9 mph becoming east southeast in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 80%.
Tuesday
Showers and thunderstorms likely, mainly after 4pm. Partly sunny, with a high near 87. South southwest wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.
Tuesday Night
Showers and thunderstorms before 11pm, then showers and possibly a thunderstorm between 11pm and 1am, then showers after 1am. Low around 64. South southwest wind around 6 mph becoming calm. Chance of precipitation is 90%.
Wednesday
A chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm. Mostly cloudy, with a high near 74. North wind around 8 mph. Chance of precipitation is 50%.
Wednesday Night
A 30 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 57. North northeast wind around 7 mph.
Thursday
A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 75. East northeast wind around 7 mph.
Thursday Night
A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 60. East wind 3 to 7 mph.
Friday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 77. Light and variable wind becoming south southeast around 5 mph in the afternoon.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. Light south wind.
Saturday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 81. Calm wind becoming southwest around 5 mph in the afternoon.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 64. Calm wind.
Sunday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 85. Calm wind becoming south southwest around 5 mph in the afternoon.
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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:
11:52 am CDT May 18, 2026
Forecast Valid:
12pm CDT May 18, 2026-6pm CDT May 24, 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