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.

Partly Cloudy

69°F

21°C

Humidity 76%
Wind Speed SW 10 mph
Barometer 30.01 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 3 Apr 3:15 am CDT
Extended Forecast for

Harrisburg IL

  • Overnight

    Overnight: A 20 percent chance of showers before 5am. Partly cloudy, with a low around 66. South southwest wind around 10 mph, with gusts as high as 21 mph.

    Low: 66 °F

    Slight Chance
    Showers

  • Friday

    Friday: A slight chance of showers before 7am, then a slight chance of showers and thunderstorms between 7am and 11am. Partly sunny, with a high near 83. South southwest wind 9 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 83 °F

    Slight Chance
    T-storms then
    Partly Sunny

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Partly cloudy, with a low around 63. South wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

    Low: 63 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: Showers and possibly a thunderstorm. High near 72. South southwest wind 11 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 100%.

    High: 72 °F

    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 40. Northwest wind 5 to 9 mph.

    Low: 40 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Sunny, with a high near 61. Northwest wind 5 to 10 mph, with gusts as high as 18 mph.

    High: 61 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 39. Northwest wind around 6 mph becoming calm in the evening.

    Low: 39 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 65. Calm wind becoming northwest 5 to 9 mph in the morning.

    High: 65 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 37. North wind around 7 mph.

    Low: 37 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of showers before 5am. Partly cloudy, with a low around 66. South southwest wind around 10 mph, with gusts as high as 21 mph.
Friday
A slight chance of showers before 7am, then a slight chance of showers and thunderstorms between 7am and 11am. Partly sunny, with a high near 83. South southwest wind 9 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Partly cloudy, with a low around 63. South wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Saturday
Showers and possibly a thunderstorm. High near 72. South southwest wind 11 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 100%.
Saturday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 40. Northwest wind 5 to 9 mph.
Sunday
Sunny, with a high near 61. Northwest wind 5 to 10 mph, with gusts as high as 18 mph.
Sunday Night
Clear, with a low around 39. Northwest wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 65. Calm wind becoming northwest 5 to 9 mph in the morning.
Monday Night
Partly cloudy, with a low around 37. North wind around 7 mph.
Tuesday
Mostly sunny, with a high near 57. North northeast wind around 8 mph.
Tuesday Night
Partly cloudy, with a low around 38. East southeast wind 3 to 5 mph.
Wednesday
Mostly sunny, with a high near 70. South wind 6 to 9 mph.
Wednesday Night
Mostly clear, with a low around 52. South wind 7 to 9 mph.
Thursday
Sunny, with a high near 75. South wind 10 to 14 mph, with gusts as high as 22 mph.
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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:
3:21 am CDT Apr 3, 2026
Forecast Valid:
4am CDT Apr 3, 2026-6pm CDT Apr 9, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation