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.

Overcast

77°F

25°C

Humidity 87%
Wind Speed E 5 mph
Barometer 29.93 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 16 Jun 3:55 pm CDT
Extended Forecast for

Harrisburg IL

Flood Watch until June 17, 12:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch until June 17, 12:00am

    NOW until 12:00am Tue

    Flood Watch

  • This Afternoon

    High: 82 °F

    Heavy Rain

  • Tonight

    Tonight: Showers and possibly a thunderstorm, mainly before 1am, then a chance of showers and thunderstorms after 1am. Some of the storms could produce heavy rainfall. Low around 70. Calm wind. Chance of precipitation is 80%.

    Low: 70 °F

    Heavy Rain

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms. Cloudy, then gradually becoming mostly sunny, with a high near 85. South southwest wind 3 to 6 mph.

    High: 85 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 72. South wind around 6 mph.

    Low: 72 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 89. South southwest wind 9 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

    High: 89 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 70. South southwest wind 7 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 70%.

    Low: 70 °F

    Heavy Rain

  • Juneteenth

    Juneteenth: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 85. West wind 3 to 6 mph.

    High: 85 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 67. Calm wind.

    Low: 67 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 82. Calm wind. Chance of precipitation is 70%.
Tonight
Showers and possibly a thunderstorm, mainly before 1am, then a chance of showers and thunderstorms after 1am. Some of the storms could produce heavy rainfall. Low around 70. Calm wind. Chance of precipitation is 80%.
Tuesday
A 50 percent chance of showers and thunderstorms. Cloudy, then gradually becoming mostly sunny, with a high near 85. South southwest wind 3 to 6 mph.
Tuesday Night
Partly cloudy, with a low around 72. South wind around 6 mph.
Wednesday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 89. South southwest wind 9 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Wednesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 70. South southwest wind 7 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 70%.
Juneteenth
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 85. West wind 3 to 6 mph.
Thursday Night
Mostly clear, with a low around 67. Calm wind.
Friday
Sunny, with a high near 89. Calm wind becoming south southwest around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 73. South wind around 5 mph.
Saturday
Sunny, with a high near 92. South southwest wind 6 to 10 mph.
Saturday Night
Clear, with a low around 75. South southwest wind 5 to 7 mph.
Sunday
Sunny, with a high near 93. South southwest wind 5 to 8 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg IL
 37.74°N 88.55°W
Last Update:
2:30 pm CDT Jun 16, 2025
Forecast Valid:
4pm CDT Jun 16, 2025-6pm CDT Jun 22, 2025
 
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