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.

Fair

67°F

19°C

Humidity 73%
Wind Speed S 8 mph
Barometer 29.93 in
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 2 Apr 2:15 am CDT
Extended Forecast for

Harrisburg IL

Wind Advisory April 2, 10:00am until April 2, 07:00pm
Click here for hazard details and duration
Wind Advisory

  • Overnight

    Overnight: Mostly cloudy, with a low around 66. South wind around 11 mph, with gusts as high as 22 mph.

    Low: 66 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms, mainly after 3pm. Mostly cloudy, with a high near 81. Breezy, with a south wind 14 to 23 mph, with gusts as high as 39 mph.

    High: 81 °F

    Breezy.
    Mostly Cloudy
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 65. South southwest wind 10 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 70%.

    Low: 65 °F

    Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 83. South southwest wind 10 to 14 mph, with gusts as high as 23 mph.

    High: 83 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 64. South wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.

    Low: 64 °F

    Chance
    Showers then
    Showers
    Likely

  • Saturday

    Saturday: Showers and possibly a thunderstorm before 4pm, then showers likely. High near 70. South southwest wind 11 to 13 mph becoming west in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 100%.

    High: 70 °F

    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 41. West northwest wind 6 to 8 mph.

    Low: 41 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Sunny, with a high near 60. Northwest wind 6 to 10 mph.

    High: 60 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 37. Northwest wind around 6 mph becoming calm in the evening.

    Low: 37 °F

    Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 66. South wind around 11 mph, with gusts as high as 22 mph.
Thursday
A 40 percent chance of showers and thunderstorms, mainly after 3pm. Mostly cloudy, with a high near 81. Breezy, with a south wind 14 to 23 mph, with gusts as high as 39 mph.
Thursday Night
A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 65. South southwest wind 10 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 70%.
Friday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 83. South southwest wind 10 to 14 mph, with gusts as high as 23 mph.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 64. South wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.
Saturday
Showers and possibly a thunderstorm before 4pm, then showers likely. High near 70. South southwest wind 11 to 13 mph becoming west in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 100%.
Saturday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 41. West northwest wind 6 to 8 mph.
Sunday
Sunny, with a high near 60. Northwest wind 6 to 10 mph.
Sunday Night
Clear, with a low around 37. Northwest wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 65. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Monday Night
Mostly clear, with a low around 41. Calm wind becoming north around 5 mph after midnight.
Tuesday
Mostly sunny, with a high near 61. Northeast wind 6 to 8 mph.
Tuesday Night
Mostly clear, with a low around 39. East wind around 6 mph.
Wednesday
Mostly sunny, with a high near 69. South southeast wind 6 to 9 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg IL
 37.74°N 88.58°W
Last Update:
1:26 am CDT Apr 2, 2026
Forecast Valid:
2am CDT Apr 2, 2026-6pm CDT Apr 8, 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